@oralloy,
"He saw Chinese students? " What makes he think they are Chinese? You can hardly tell if someone is Chinese, Japanese or Korean simply by its appearance; you only get the answer when they start talking.
Other than that, China also has lots of stern conservatives who consider North Korea a friend of China and America is a threat to China's rise. Some of them are said to have already settled down in America, say, an avowed conservative woman who used to chide America when she was still living in China.
Actually, they are not genuine conservatives, zowie, since they simply use it to make money from their books or TV shows. Their shared tagline is " bashing America is my job. Living in America is my life. "That's why most of them stop trashing America after they have become American citizens.