San Francisco's Progressive politicians are huge supporters of "cheap housing projects" as a percentage of permitted development (i.e. by blocking other projects), but are so far apathetic towards radically increasing the absolute number of below-market units built, which is what it would take to actually improve affordability overall. As it stands, below-market programs give disproportionate rewards (rent subsidies worth thousands per month) to a handful of lucky winners drawn off the waiting lists.
