Engels believed the US wouldn't be able to support a revolution until all of its speculative markets (particularly land speculation) become inaccessible to the proletariat. American proletarians who speculate on the price of property will always side with bourgoisie parties, which we have seen play out through history as the democrats and republicans successfully repackage leftist rhetoric and actions into something less scary to white supremacists.
It's only just recently where we've begun to see speculative markets break down, hence the handwringing over war with China. It was always going to play out this way, we just didn't see it. We surmised that maybe the leaders weren't strong enough or the state was too oppressive. But the reality is that the breakdown of the US state was always going to come "on time" and not a minute early.
American prosperity is dead. The prosperity gospel with die with it. And then America itself will die.
It's funny to me how every new explanation I read about this war paints libs dumber and dumber that you get the impression they've got mush between their ears.