It's pretty straightforward. If you're an elite, Ivy institution whose brand is all about mingling with "future leaders" and the ruling class of tomorrow, the rise of poor and working-class Asian children of immigrants who've been absolutely crushing the SATs presents a big problem. If something like half of an incoming class is composed of these students, it makes it difficult for admissions offices to include enough children of the current (largely white) elite, who will go on to be in influe…