Golly, you explain it so clearly, I had no idea the Chinese had nothing to lose , it is the US  that will be the big loser.

And here all along I thought that China built their economy on the backs of three things: stolen technology and intellectual property (mostly from the US),  flooding of  the US market with Chinese manufactured low quality low cost goods, and theft of American manufacturing jobs by virtue of China's low wage neo-serf economy.

And if the Chinese was to dump their US debt, have at it, they'll be the ones losing money, not the US.  

10 million US job losses you say? Golly.