America is being left for China. All big business is moving over there in face of pending financial instability. China is the most sovereign and populous country on the planet. The support is there especially with its manufacturing clout and hardy workforce that has an affordable cost-of-living. America will remain to be an unsustainable empire while China continues to look towards a new dawn.
China has more problems than we do by far, between their bizarre money manipulation, their housing bubble that is worse than ours, and the chance of heavily stagnated or crashing population growth due to discrepancies in male/female ratios because of the one child laws, not to mention heavy heavy corruption and lack of things like building codes which let schools fall and crush thousands of children during an earthquake.