What does "the Balkanization of the United States" mean?
The phrase Balkanization of the United States is used in two very different senses with very different connotations and implications.
One sense involves geographic fragmentation of governmental authority leading potentially to a weaker central government or secession.
Another sense involves ethnic fragmentation leading to something on the continuum between a multi-cultural society and a "tribal" society.
To some extent the second sense of the phrase is a "dog whistle" intended to convey a message about ethnic fragmentation that bemoans the fall of a unified Anglo and Christian national identity to the main audience, while causing people who don't share the views of the person used it to see it as a message about federalism and "subsidiarity".
Balkanization As Geographic Fragmentation Of Governmental Authority
Balkanization means:
Division of a place or country into several small political units,
often unfriendly to one another. The term balkanization comes from the
name of the Balkan Peninsula, which was divided into several small
nations in the early twentieth century.
Usually, the term Balkanization refers to the existence of multiple small sovereign entities in a geographic region. But, in the context of "the Balkanization of the United States" what is referred to is a shift of power from the federal government to state governments, and to a greater amount of diversity in policies between individual states or blocks of states or governmental subdivisions within states.
Thus, for example, when Roe v. Wade was decided by the U.S. Supreme Court, the United States has a uniform national policy regarding when abortion could be criminalized. But when this case was recently overruled by the U.S. Supreme Court, the result was that U.S. states now had potentially 50 different rules regarding the legality of abortion, which actually manifested in a large number of U.S. states where it is completely prohibited, a large number of U.S. states where the status quo established in Roe v. Wade remained in place, and a few states where some other intermediate rule was adopted.
Prior to the U.S. Supreme Court ruling holding that state bans on same sex marriage were unconstitutional, there was similarly great diversity between U.S. states on the legal status of same sex couples, with some states allowing for same sex marriage, some prohibiting it, and some allowing for legally recognized civil unions and domestic partnerships similar to same sex marriage but different in name and in some legal consequences.
In the case of marijuana regulation, despite U.S. Supreme Court caselaw clearly establishing that the federal government has the legal authority to establish uniform national laws regarding controlled substances, some states began to legalize or to decriminalized marijuana under state law in some circumstances, and the federal government rather than pushing back hard against this state level defiance, as semi-officially taken a stance of tolerating these state level legalizations again creating a diverse state to state set of policies on a major national issue.
Some of the pre-Balkanization policy uniformity that existed in the United States arose from federal policies, but in other cases, it arose simply from states and local governments voluntarily copying each other and from states sharing a "common law" legal system with shared root in English law, or out of political pressure to make the law uniform nationally to the extent possible, especially in the laws of contract and personal property.
For example, while no federal law mandates it, every state has independently adopted the Uniform Commercial Code as state law, and had structured their state level professional ethics regulations in the numbering and form of the Model Rules of Professional Conduct promulgated by the American Bar Association, even though different states have differed in detail in this regard. Other examples of state and local governments copying each other wholesale involve incorporations by reference of various Uniform Building Codes.
Also, in the formation of judge made common law, state judges have tended to view precedents from other U.S. states as persuasive, resulting in great similarity even in the absence of absolutely identical laws, between U.S. states.
But, when you have the Balkanization of the United States, states and local governments start to intentionally make their laws on various subjects different from those of other states and local governments, most often, along the familiar red-blue divide between conservative and liberal leaning U.S. states and localities.
How does a country/political entity/area become Balkanized?
An area becomes more Balkanized when smaller geographic areas start to adopt and implement different laws and policies, because local areas want different policies and because it has become feasible to do so.
Balkanization As Ethnic Fragmentation Of Society
There is also a sense of the term "Balkanization" derived from its earlier meaning defined above, that is more abstract and refers to fragmentation of a society or civilization in contrast to unity of a society, while abandoning the sense of the word to meaning only fragmentation in a geographic sense, and without necessarily referring to governmental fragmentation.
The term Balkanization of the United States (or another country) is for example, also used in a non-geographic sense (e.g. in an opinion piece in the magazine the "National Interest") to refer to a situation in which a common national identify and self-identification becomes secondary to ethnic identities, which one author summed up as follows:
This Balkanisation is, however, a predictable and major threat to any
social cohesion within Britain, or the United States. If one
identifies as a hyphenated American (a practice which is relatively
new, and ascendant with the spread of an evangelical form of liberal
individualism), sooner or later, one would be in a tribal conflict
with a different hyphen. The key is to remove those hyphens, not to
encourage more in the name of liberal individualism. For a country
that isn't ethnocentric in nature, but rather credal in its formation,
maintaining a form of unionist creed is naturally important. That
includes at least some form of homogenization and assimilation. Else,
sooner or later, you'd end up with the fate of Yugoslavia.
When used in this sense, Balkanization is being used pejoratively (even though the term itself is not inherently pejorative) to describe the kind of society that the author fears that identity politics will produce - i.e. fear of a "tribal" and ethnically divided society. A more positive spin on the same kind of ethnic diversity in a country like the Britain or the United States calls it a "melting pot" or more pointedly a "salad bowl" vision of the society.
In this sense the rhetoric of Balkanization is being used as a more politically acceptable euphemism for concepts that might otherwise be described a soft core version of "white nationalism" or "racism" or Christian nationalism (a.k.a. Dominionism).
In the "ethic sense" a country/political entity/area become Balkanized to the extent that a nationalist vision of a common culture for everyone in the nation fails. Those who fear ethnic Balkanization are afraid of "wokeness" or a non-color blind society, of deviation from the religious plurality or majority, and of negative portrayals of the nation's history that could undermine a desire to unite behind a nationalist vision for the country.
What does Balkanization mean specifically for the future of the United States?
In The Geographic Sense
In the United States, this means that different states and blocks of states and local governments could start to adopt very different policies, particularly on social issues like gay rights, public funding for religious schools, abortion, women's rights, transgender rights, parental rights, marriage and divorce, and symbolic treatment of historically racist figures like Confederate war heroes.
This has the potential to be problematic because the United States is set up to be a single commercial marketplace without border controls for customs or immigration of any kind.
If someone is illegal in one state but legal in another, there will be travel, which may or may not be legal, between states to circumvent the restrictive policies of a state.
If a blue state regulates certain kinds of firearms, someone is likely to illegally import the firearms to that state from a state where they are legal.
If a red state bans abortion pills, someone is likely to import the pills to that state from a state where they are legal.
If Maine legalizes polygamy, but other states ban it, this could limit the ability to polygamous families in Maine to travel freely to other states.
On the other hand, to the extent that Balkanization is with respect to policies that don't have much spillover effect and don't interfere with interstate commerce too much, it can allow everyone to live in places which have policies more to their liking without too many negative "macro" effects.
In a Balkanized United States where differences in policy do have great spillovers and impacts on interstate activities, however, the divisions between red states and blue states could become so great that the country becomes effectively ungovernable as a single unit. This might create pressure to divide the United States into one or more actual sovereign states that are not part of the same country.
Of course, one of the big consequences of a division into separate sovereign states is that sovereign states that can't resolve issues between them often resort to war, while subordinate U.S. states resolve their differences in court and in Congress.
In The Ethnic Sense
To say that society is becoming Balkanized in the ethnic sense is to say that society is becoming, in a positive sense, multi-cultural, and in a negative sense, "tribal."
The distinction between the two largely comes down to whether there is tolerance and non-discrimination in the multi-cultural vision, or there is in group favoritism and hostility in the tribal vision.
Critics of ethnic fragmentation often fear the demise of a conservative Anglo Protestant culture in favor of the influence of other ethnic cultures domestic and foreign which they view as undermining the "real" American national identity.
Those who embrace ethnic diversity, in contrast, see this as casting aside the unfair dominance of one ethnicity over others and replacing it with a more egalitarian and rich society.