We’d rather have the iceberg than the ship
As a non-American... this model is crazy in my mind.How/why do you not promote the growth of denser, middle class inner city neighborhoods with a diverse profile?  Is there a positive reason to not encourage it?Is it entirely driven by the fact that local taxes decline on the outskirts?  If local taxes were done at a uniform rate statewide, would it helps?  Building standards which means construction of "depreciation homes" is not viable, and owners have to build for 100 years in greenfields?