The soviet government was unable to keep the lie going. The USA government does not have that problem: They are funded by biased taxation and trade agreements, a monopoly on many forms of intellectual property, a monopoly on 'world police' duties, and sale of most of the international currency. When all that fails, they simply invent 1/3rd of their federal revenue from thin air.
The US government is hardly synonymous with capitalism. Whether that's a good or bad thing I won't get into, but it's entirely possible that US might survive the fall of capitalism and recover. However, should this not be the case, it doesn't matter how much money it can print for itself. Money only has value within a functioning economic system; all the money in the world can't buy anything is no one is selling.
All the people provide is disposable labour and babies for future labour markets.
And they're starting to admit that, too. Once you consciously admit that the promises offered by some Power that Be are lies, it no longer has any power to compel your loyalty. It might try coercion, but as the Soviet coup demonstrated, that's a desperate gambit that has low chances of working, even if the people who make up the army still stay under its spell.
In short, capitalism is going to fall for failing the same test it judges people by: can you deliver? And it could had avoided its fate by showing mercy for those who can't. There is irony in that. But the stupid thing is that it already got a stay of execution back when communism first arose by becoming lighter and softer with unemployment benefits and keynesian stimulus economics, and is really only dying due to abandoning those - and could still repent a second time, it's just bloody unlikely to.