Elon didn’t start a new social network, he took over Twitter. You don’t need to start a new city, you can take over existing ones by just moving there en masse and voting for your candidates. You don’t even need 44b. This is hard to do, but it’s easier than moving all the intellectual capital out of SF. Network effects are hard to disrupt.

I agree that you can change a place within. It needs to have popular support from the people that live there. But if the culture of a place is screwed up, it takes time to fix it. Clear examples are El Salvador that had the highest homicide rate in Americas and now the safest, or Argentina with the worst economic policies and now it has Milei.