I think you’re underestimating how much MAGA Republicans are willing to bite their own noses off to spit at minorities.
They will, maybe reluctantly, give up social security, Medicare, any many of the social programs they benefit from if it allows them to hate Mexicans/Cubans/trans people more.
My favorite is when racists say “We’ve had a black president so we can’t be a nation of racists.”
Like…somehow having a black president now makes it okay for all of the shit conservatives want to do.