SF has way too much commercial space for the amount of residential space it has.
As opposed to many others, I'm fine with residents deciding they don't want to change their city by allowing high density residential... however there's a simple price to pay: no high density commercial.
It is one of those fundamental things which should be mandated statewide, the ratios of commercial to residential should be within bounds for each municipality, and the abundance of some should drive prices crazy low and crazy high in some places so that these disparities tend to correct themselves.
Instead there are policies that seem exclusively tailored to only do the crazy high pricing part.
(and while we're at it, vacancy needs to be taxed to further drive the point home. if you won't lower your prices enough to get occupied, prepare to subsidize those who do)