Because the population of China is nearly four times that of the US.
I am an American and care about Americans. I could give a flying f about China Mexico or any other country on this planet.
OK, Russia, India, Iran and everyone else will trade with China. Good luck peddling your expensive wares on the world market then.
I dont care if they all starve to death in a dung filled rice paddy. I am not a gloBULList.
The starving, if there is to be any, will likely be in this country if your course of action prevails. Manufacturing is gone, and not coming back.
All we have to offer is brainpower and natural resources.
If we, through capitalism, can convince their workforce that that is the better route, we will stand a chance.
If they remain an isolated communist society, they will need (and ultimately try to take) our resources.
So in closing I wish you all the worse in life to come.
PS: Since you care SO much about the Chinese then go live there, Cathay Pacific has flights daily. AMF