I'll take shipbuilding, tank manufacture, aircraft construction, and logistics for World War Two, from a prior activity of about nil, as an example of accomplishment.
I doubt we'd be able to do that today at at least the same efficiency.
Except, there's also China with superior morale, superior education and superior efficiency, that might have better plans for the resources left behind a fallen empire...
China also has a huge population problem coming and it’s likely that they have already peaked economically (you’ll notice states like China get much more belligerent and bellicose as they fail ala Russia) and even that is due to government mismanagement.
So, my point is China isn’t some grand strategic master. They are a country with their own problems, likely even worse than most countries because problem exposition is strongly discouraged.
This doesn’t mean that America or any other country doesn’t have problems, but China isn’t particularly special here.
Uh, what?
Which it has largely done, and moves on. Saying it's not resilient enough to handle the situation seems to be wishful thinking in that case (and is obviously false in the case of Tiananmen Square or Tibet.)