I would argue it is less about urban planning and more about local politics. Outsiders of the Bay Area may decry the blatant economic elitism, homelessness, an

I would argue it is less about urban planning and more about local politics. Outsiders of the Bay Area may decry the blatant economic elitism, homelessness, and dystopian reality of San Francisco -- but the local politicians keep getting re-elected. At some point, the State of California will have had enough. Or a Federal Judge will have had enough. They will essentially say that the State of California needs to wrest power away from local authorities and put power into the hands of appointed outsiders who will re-zone/authorize high density development next door to million dollar neighborhoods. e.g. Peter Thiel and his wife may find themselves next door to high density apartments.