It's discrimination any way you slice it. You can't lower the bar for one person without raising it for another so long as the class sizes remain the same. If elite universities are about providing education (a valid point of critical contention), then systematically barring Asians from entry is the same class of injustice litigated in Brown v. Board of Education. It's not enough to say you can learn calculus just as well at the University of Massachusetts.
"Here we find our first indication of the strength of preferences for underrepresented minority students. African-American students have nearly an 80 percent better chance of being admitted than their white counterparts, while the Hispanic advantage is reflected in almost 50 percent higher odds compared to whites. By contrast, Asian applicants and those from other races face lower odds of admission on the order of 17 or 18 percent—in relation to comparable whites."
"Here we find our first indication of the strength of preferences for underrepresented minority students. African-American students have nearly an 80 percent better chance of being admitted than their white counterparts, while the Hispanic advantage is reflected in almost 50 percent higher odds compared to whites. By contrast, Asian applicants and those from other races face lower odds of admission on the order of 17 or 18 percent—in relation to comparable whites."
https://scholar.princeton.edu/sites/default/files/tje/files/...