It’s literally the same issue. Changing climate is going to force mass migrations. Don’t like brown people? Maybe do everything you can to make sure their countries of origin remain liveable and prosperous. I’m guessing many would rather that then coming to some xenophobic land of full of a-holes in order to carve out some semblance of a future for their families.
Repubs get a +10 bonus for dirty tricks, so any Dem lovers better be out there hustling up some more votes.