> White billionaires hang out with black billionaires, not with white hobos.

I'm pretty sure that, to a 90%-10% ratio, they hang out with white millionaires, not either of the groups you described.

You're reinforcing the parent's point that there's not race discrimination but class discrimination. Our hypothetical white billionaire is presumably discriminating utterly on a class basis (hanging out with zero poor people of any race) and not discriminating at all on a racial basis (hanging out with members of his class in proportion to their race / without racial bias).

You missed the "black billionaires / white millionaires" distinction.

I did, my mistake. In that case I'm skeptical of your premise (that white billionaires hang out with white millionaires but not black billionaires).