The real problem is classism and economic diversity more than racial diversity now. Schools like Harvard are moderately diverse on race, but economically not at all.. something like 90% of kids come from families that are upper income.

If you are trying to raise all boats, then economic class is a better method since given the relative amount of people .. there are actually more poor white people than any other race, even if white people experience poverty at a relatively lower % rate.

This also avoids all the racial resentment / reverse racism issues.

So there's your adult conversation, but I don't think OP posting a link to a racist defacement of a website was looking for that.