Chinese students have family in China. When China wants something from them they have to give it. If China says demonstrate against the HKians they demonstrate against the HKians. That is why it is deleterious to US security to have Chinese immigrants or their children in sensitive jobs in Defense or in industry. Any info they touch is copied to china.com
u bime to send them home en-masse, along with the Communist Chinese H1Bs and EB5 Investor Visa. But alas, Republocrats have pushed fir HR1044, in a bid to increase Communist Chinese here