The other is that political sorting and radicalization have rendered parts of the country unsafe for vulnerable populations to live in; my Massachusetts Republican neighbors might be uncomfortable with Pride flags bracketing their Thin Blue Line house, but they're not in danger of their safety unlike my LGBT friends in the South--or, at current rates, my "anodyne liberal" friends, too. Vulnerable populations or those sensitive to the treatment of vulnerable populations are going to leave if they can. They just are. And that takes a pretty big swing at the personal idea of connecting with people through offline methods, too. Hard to believe in community when yours does that.
The former has some solutions, though at this point they feel like really beating that dead horse. UBI, national health care, ways to make being not a white-collar worker less immediately terrifying in much of the country. That can help anchor people if they don't feel like they have to go elsewhere to live at least adequately. The latter--I don't know how you convince people to not be weird about vulnerable and marginalized populations. They're probably going to keep leaving, and while there's some found-family effects from that kind of diaspora, it's not the same thing.