Clearly some of the Republican/Democrat political divides are insurmountable. The respective parties proponents become highly militant on issues of race, birth control, healthcare, etc. What's more there are very clear dividing lines, between the urban and rural areas spread almost uniformly across the entire union territories. This is recipe for total collapse.
And this is only growing in magnitude with each perceived crisis. See Covid and Afghanistan as the latest catalysts in a string of polarizing failures of the US establishment for reference.
I'm seeing dividing lines encompassing entire state boundaries too. Texas and California look to be in outright rebellion. Those are major constituent states with a great deal of inertia. I don't think there will be a civil war this time. There is no party strong enough to embark on a reconquest of dissident territories. There is too much unraveling all at once across the entire union. Motivations will tend toward localized regionalism and increasing decentralization until you're left with something resembling a holy american empire, it will be neither holy nor American nor an empire. Just a bunch of billionaire princes lording over various states and cities and doing their own thing. Just like now but without any federal weight whatsoever as the system comes crashing down.
I question even now whether the federal government can actually enact or enforce any kind of union-wide policy. And this extends to foreign policy as well which has been completely schizo and self defeating for over 20 years now-ranging from trade to military interventionism to sustaining existing alliance/satellite blocs.
RIP American pigs.