One problem is that a quota system penalizes Asians more than whites. This would imply that Asians have historically benefitted more than whites from a biased

One problem is that a quota system penalizes Asians more than whites. This would imply that Asians have historically benefitted more than whites from a biased university enrollment system. What could possibly cause the (mainly white) college administrators to give Asians preferential treatment over whites?