The progressive closure of San Francisco
…San Francisco does not have a massive network of regional public transit connecting hundreds of different high-density, walkable communities to the city. In fact, neighborhoods that foster urban life and convenience are tremendously scarce in the Bay Area. All of this means the pressure on San Francisco has proven to be even greater than other cities in the country.
Regardless of these realities, most San Francisco progressives chose to stick with their familiar stance of opposing new development, positioning themselves as defenders of the city’s physical character. Instead of forming a pro-growth coalition with business and labor, most of the San Francisco Left made an enduring alliance with home-owning NIMBYs. It became one of the peculiar features of San Francisco that exclusionary housing politics got labeled “progressive.” (Organized labor remained a major political force throughout this time period, and has allied with both pro-growth and anti-growth forces, depending on the issue.) Over the years, these anti-development sentiments were translated into restrictive zoning, the most cumbersome planning and building approval process in the country, and all kinds of laws and rules that make it uniquely difficult, time-consuming, and expensive to add housing in San Francisco.
That is from Jed Kolko, hat tip to Conor Sen.