You'd need to end or severely restrict local zoning. Everyone loves the idea of cheaper housing for people in theory. Once they realize it means their own pro

You'd need to end or severely restrict local zoning. Everyone loves the idea of cheaper housing for people in theory. Once they realize it means their own property value won't appreciate as quickly, or may even decrease and then suddenly they are against it. And they will vote out any officials that support it. There needs to be state or federal intervention. And that doesn't seem likely at any time in the near future.