CACs been conducting race wars ever since they emerged outside of their caves. They have centuries of experience at it.
If any and all weapons are usable, then white ppl got this no question. Their propensity for evil doing is probably unmatched in the annals of human history. I mean they did drop not one but TWO nuclear bombs on Japan soooo....yea.
What about mixed race communities? Will they drop nukes knowing their white people in the neighborhood too?
Hell yea they would. What they'd do is send out the word globally that you either with them or your against them, no in between. In the same breath they give the warning of what's coming next by having those that want to be with them need to report asap at designated locations. Also it's not like they'd care to much about the collateral damage anyways.