Yeah, I can see China falling apart. The LAST people in the world who know how to run a capitalist, free-market economy are a bunch of elderly communists.
But business people tend to be gun-shy. They may have their eyes blinded by $$$ signs right now, but it won't take a whole lot to wipe those out and cause all those dollars to be withdrawn from China and put in the safest place in the known universe. The US economy.
Europe, as we know, has MANY problems and practically nothing for growth prospects. Japan has its own problems and history that will make investors stay away for a long time yet. Russia's a basket case. Greater Arabia ditto. India maybe I suppose, but not if its a world-wide phenom.
Where else is there to put money into? Only the US.
If China falls apart, every one of these investors is going to get burned and start repeating to themselves at LEAST once a minute, "Fool me once, shame on you, fool me twice, shame on me." They'll come back to the US, ESPECIALLY if as some on this thread note, this becomes a world-wide problem.
We've been through this a couple of times. We tried to expand into China back in the '70's, the Chinese ended up appropriating everything; buildings, equipment, etc.
Same deal again in the '90's.
It'll happen again. As people accumulate capital, the government will have no choice but to appropriate their assets and probably disappear them. US corporate assets will be appropriated to clean up the mess. It'll end up being another tax write-off and waste of time.