2. I used to be uhh a foreign national in the U.S (as I still am), and assumed it was a known fact that Chinese nationals often buy their way through college. Somewhat related: Northeastern and their special- Chinese-student program that gives 4-year US degrees with 0 knowledge of English.
3. It is not necessarily something to complain about, as long as it doesn't COMPLETE dilute the value of the degrees concerned. AFAIK, Chinese students (NOT Chinese American, mind) are the only students who will often pay 100% of the feels, with no request for scholarships. So to look at it the other way, you're subsidizing smarter students by taking in slightly less smart students (tbh, most Chinese students are extremely competitive, so we shouldn't be generalizing.)