Not only are the Chinese students crowding out qualified Americans from the few top spots in some of the world's best universities, it is a well-known fact to the FBI that Chinese (and other foreign) intelligence agencies recruit citizens studying in the US to steal research information that the hackers in Shanghai can't as easily get from afar.
My father was a researcher for a major university for decades. He fought tooth-and-nail for every dollar in grant money he could get to create the knowledge that underpins the basic electronics that run our devices. And he would get tens of thousands of hacking attempts from China every single day.
He also spent years building a hardware test environment, and a Chinese grad student that worked in the same lab took the designs and replicated them in China for a tenth of the cost - all without as much as a decent thank you.
But the Chinese pay full price so the few American students who can get in save a little on tuition, so it's all ok.
/rage