Nothing but supply side growth is going to solve the country’s housing concerns. Restricting development to curb gentrification is futile.
Housing, zoning, energy and transportation decisions should be pulled back to regional levels. Population density is increasing and NIMBYism doesn’t solve the problem, it just shifts the problem to a neighboring location. Letting cities make decisions without consodering regional needs makes things worse. Just look at what happened in San Francisco. In the 70s they decided to downsize land use and zoning.
But then the whole world changed and cities started growing again. The problem is that we have locked in place the rules and culture from these early ’70s preservation movements that today make it really difficult to add housing.