Probably a mix of the oblivious, the aligned (we have our contingent that's OK with the direction of the U.S. They just suck), and people with family in need of support (lot of retirees in warm/dry places).

I was praying my grandfather would get his head out of his ass and come back to Canada for familial support after my grandmother died, but he's a stubborn old bastard who still gripes about PET and apparently renounced his Canadian citizenship at some point. So it's scheduled visits from his kids and a system where they get a text message if people don't see him at the dog park two days in a row. They kinda have to go, he's got no one else at this point.