This kind of thing also occurred in the USSR because the native Russians were underperforming, so many elite institutions had implicit quotas such that one might have answers struck down in qualifying exams for being “too right”.
It’s a hard political problem (both the discriminated against and the ones benefitting from the quota have a valid argument). Obvs an unbiased solution would be to admit the best, regardless, but for social reasons, it may not be optimal.
I am certain that, unlike 100 years ago, the fear isn't that Asians are crowding out white males; but that they are crowding out other minority groups. That is an entirely different motivation than anti-Semitism.
https://projects.iq.harvard.edu/expose/book/cloak-meritocrac...