This is why the discussion can't even happen, and why companies and universities still enforce percentages for underprivileged groups even though it is obvious discrimination (but it's "good" discrimination! Give me a break).

Person 1 says that enforcing a 50 people of type A and 50 people of type B when the number of qualified candidates is 20 and 80 will result in either hiring significantly fewer people in general, or hiring under qualified people of type A. People of type B are being passed over because of their race/gender/ethnicity. This is discrimination.

Person 2 says that implying that anyone of type A could be under qualified is itself discrimination, and this possibility should not be addressed or considered. Nothing can change because the issue cannot be discussed.