Comment by int_19h

I would argue that USA has already disintegrated as a single country with respect to its foundation, which is the society itself - basically, there's no single "American society" anymore. The only thing that still keeps the country together is the formalities of governance, and even that will only last for as long as people are willing to tolerate them (which is less and less with every passing year).

It might be possible to reboot it in more or less the same format as the original was way back when (i.e. by moving most political questions out of the federal level). But there needs to be some motivation to try to keep things together at least on some level. For the original colonies, it was clear that they would simply not survive on their own. But for many states today, they have numerous independent countries of similar size (in terms of territory, people, economy etc - you name it) as a showcase that it is possible.