I don't much like the scouts and supply line analogy
I didn't think you would as it's not based on a 200 year old marxist analysis ;)
There will be a another civil war and societal breakdown in the US, that is a given, over BS political ideological differences and extreme inequalities and deprivations created by the system that they chose. Regardless, it's like the civil wars in the roman empire before the goths sacked rome, in this case the goths are china and maybe russia. What happens in the US spreads throughout the whole world, especially Poland. Even now the polarisation and tensions in Poland are striking, a tvp journalist cannot go to a PO rally without being threatened and vis-a-vis for tvn24 journo at PiS rally.
Therefore we need new theories and ideologies that bring people together into a cohesive society, call it nation-state or whatever it doesn't matter, different groups need transcend their political differences and realise we are part of one western humanistic culture or it's game over, might as well teach the kids mandarin and that the han chinese are the master race.