So I will concede that he doesn't give half a shit about 4, and thinks that people who have less rights in interior states shouldn't have those rights anywhere. Furthermore I think he wants to separate the victims of his beliefs from ordinary working class people. Easier to hate a caricature of someone when they aren't your neighbor.

But I'll add 2 more:

6. The cost of living is going up in many previously cheap places now too. Some it's not, my first apartment is apparently cheaper now than when I lived there, but it's not a place many people are going to want to live. The nearest cities which are historically budget friendly cities on the other hand are no longer budget friendly. And no the places that are cheap aren't scenic bumfuck nowhere, it's small towns that aren't pretty and don't have much to do, even outdoors stuff.

7. Cheaper places are increasingly non functional in basic governance and public services. Public transit? Yeah good fucking luck even in the cities people think should be fine. When you get to really small bumfuck nowhere you better hope you don't need medicine fast, Benny boy helped ensure that the hospitals in those places shut down by fighting against Medicare and Medicaid. The water? Contaminated. What are you getting for your taxes? A bad school, a censored library, asshole cops who are bored when you're coming home from the city, and not much else.

Alternatively high cost of living areas are starting to engage in urbanist policies which will reduce the cost of living. Sure you won't have a big yard in the city for cheap, but a reasonable sized apartment at a decent price or a reasonable priced house in the suburbs are possible.