I purposefully chose "extreme" examples that everyone would agree upon, to illustrate a general idea: just because a practice is effective at solving group-level inequality, doesn't mean that practice is legitimate or causes no harm. I'm not saying those examples prove that minority scholarships are illegitimate, I'm just showing that your logic (they help racial inequality, so what's the harm?) is not necessarily sound, all by itself.
Secondly: I'm not saying minority scholarships should be illegal! What I'm saying is that they should be looked at more critically. According to
Teach for America only 8% of kids growing up in low-income communities graduate from college by age 24. But according to
Wiki, 40% of the general American population over age 25 graduates from college. This is a big problem.
On the other hand if we just look at race without looking at the context, we are lead to (i.m.o.) nonsensical conclusions. A remarkable
48% of native-born Asian Americans are attaining college degrees, whereas only 30% of native-born whites are going to college. The disparity is even worse for blacks and hispanics. Clearly, there should not be minority college scholarships for Asians -- and yet there are many. Clearly, whites should not be the only race excluded from "minority" scholarships -- and yet they essentially are. Is anyone going to argue that Asians are outpacing whites because there exists
racism in favor of Asians? Society sometimes still acts as though we are living in the 1950's, when there was institutionalized racism against non-whites, and any racial disparity was caused by that institutionalized racism. The country has changed. Unequal opportunity in America today is due to poverty. And unequal outcomes are due, at least to some extent, to individual choices which happen to coincide with race, giving the appearance of racism when in fact little or none may actually exist.
I think colleges don't want to solve the real problem of unequal opportunity due to poverty, they would rather treat the symptom -- racial disparity. I think it's better for their endowments. That's why tuition costs are skyrocketing. As long as you solve the politically-correct problem of racial disparity, you can ignore the really fundamental problem of class disparity. I've been to a few college campuses where the student body was very "diverse" (meaning whites and native-born Americans were under-represented). Asians were strikingly over-represented. And guess who was barely represented at all? Poor kids. Most of the kids, of all races, were clearly from well-off, educated families. Hey we're diverse, so let's raise tuition!