LOL @ the American flag made in China on the moon lol, regardless of what it means it's funny
MMM you make a good point that China's power is in fact based on the fact that their labour is cheap.
Invariably if they become a superpower, and their currency is adjusted to reflect their position (which they have been stubborn about doing in a tactically genius way) then their cheap labour will go up in smoke.
In fact, it is commonplace among Japanese businesses to open up plants and factories in south asian countries instead of China because of the prediction that Chinese labour will become costly sooner than later... add in some spite to fuel that fire.
Regarding American export, forget about cars! Coca Cola and McDonalds and Intel etc. That's a foothold that is hard as hell to shake loose of for any country. America has deep-rooted itself into the necessities of everyday life for most of the world, imo.