China will sell to richer Chinese, Japanese, Canadians and Russians. Canada and Russia are rolling in oil money. Not to mention the Saudis, Iran, Pakistan, and Syria.
I think he's saying that Red China could revert to a police state/command economy with minimal disruption as compared to the affect her rendering the dollar worthless would have on the West. I for one firmly believe that Red China is still a committed enemy and is using the West to build Communism (the "Great Leap Forward"...but for real this time). Red China has managed to build itself up (not to mention the Eurasian Alliance as a whole) to a place where it can confront the West in ways were are only just beginning to imagine IMO.