~8,000 Chinese students expelled from US colleges from 2013--14.

Probably small in number compared to the number of (in-state) low SES students with uncooperative divorced parents. However, they may be more visible anecdotally to posters here, who are mainly high SES, and most people socialize with similar SES people (so most posters here have little social contact with low SES students and families). Requiring NCP information for financial aid, like many schools do, would stop this type of thing, but would likely cause much greater collateral damage to the state universities’ mission of providing access to higher education to low SES students.