This is a good point, but extends beyond individuals to companies as well, and seems to justify a pretty clear decoupling between China and the rest of the world until China is willing to play by the rules. Should we also then extend the guidelines that constrain foreign students from studying certain subjects in university (historically by not letting certain US government funds for research grants etc pay for those foreign students). It is obvious that China exploits the US educational and research system in a way that doesn't benefit us in the same way, apart from hoping that some students would stay and become productive members of society here who have no interest in funneling IP back to China.