I agree Jeremy Lin's experience in the NBA was not smooth with regards to acceptance, maybe even now. I'm an Asian, and I've experienced social questioning/shocks that you mention.

Having said that, I still hope that the difference in priority and importance is obvious between: (a) correcting the impacts of hundreds of years of systematic outright denial of opportunity in all aspects of life, and (b) a top school's rejection of an applicant who do not belong to an under-represented group and who will likely get admitted in another top school or another very good school.