Whiteness is a social class. Why engage with it on racial terms? That is my hang up. It makes no sense to me.

When someone talks about genocide on whites, they are racializing a conversation. Talking about sterilization undeniably invokes racial context. To what end? It would seem to negate your point.

It’s very uncommon to say “genocide the rich” or “genocide the straights”.

Whiteness as an unjust social order can be attacked without racial irony. I would think making it racial would, in fact, defeat the point of it being a parasitic social relationship.