And yes, I don’t think cousins should marry, since that’s relevant to all of this apparently. 

So you would support a law banning (let’s say new) cousin marriage, even if it would massively disproportionately effect only one ethnic group, who are predominantly non-white immigrants?

Because that would be a cultural change brought about by immigration, one that has non-trivial bad effects, one that has been stubbornly persisting, the kind you lot are always insisting isn’t real, and banning it would not be respecting cultural diversity and would mostly be dunking on one particular culture.

I would propose a series of bets with you, but I’m fairly confident that’s against some kind of American anti-gambling law.