Cities that are very walkable and have a thriving downtown / mixed business areas can be a ton of fun and very good, but it’s very hard to ever make that affordable, and basically impossible to do in America which has large space demands and associates home ownership with the American Dream.
If anything, I see the intellgientsia pushing it because they have been captured by the global rich (see Steven Pinker) and the super rich love cities (again we all do) and they want more of them to play in as well as a huge domestic servant / labor force bought of with a modicum of UBI for the time being.