European or Global Crisis? It looks to me as the choice for the US is between fascism and civil war. Either will produce a big decline in global influence and possibly economic collapse.
Russia is already collapsing - needing the support of N Korea even to give a semblance of continuing the war. China now owns the world, though it too has economic troubles.
The place to look is at the collapse of the Roman Empire into corruption, and possibly Europe has enough of a cultural memory not to succumb yet again.
But everything depends on the economy. Economic decline is always blamed on the government (in the UK's case it was the EU 'government'), until the fascists are the government, and thereafter on foreigners. Thus economic decline leads inexorably towards fascism. The only hope is to identify the real cause of decline - the climate. Our accumulated labour of buildings and infrastructure and cultivation, aka the manmade environment is being burned, drowned, or blown away, and we are poorer.
Unfortunately this coincides with the left in a major transition from being the party of labour to being the party of the disenfranchised. Labour as such, trade unions, have lost their economic power due to automation, leaving the left scrambling for the same tawdry populist garb as the right. Thus in the UK, labour are in power, but their policies are indistinguishable from rightwing policies.
Humans are even losing their importance in the conduct of war, which Ukraine is showing can be largely better carried out by robotic machines guided by AI. Now if humans en mass no longer have economic or strategic value, can their moral worth sustain them in a godless world, that has reduced morality to sentiment and mere whim? We are all foreigners now.