I didn’t say all white because I don’t believe it has to be all white, I think ethnic homogeneity allows groups to forgo a lot of issues that come from having different people with different values all amongst each other. I don’t think that should be very controversial. If you don’t believe me, go look at the most successful social policies are mostly racially homogenous. You can shut your eyes and pretend like it’s not the case but it’s not very helpful to the conversation at hand.