It will take years, if not longer, for any challenges to work their way through the courts. By then, the next economic event will occur, driving out non-owners in the Bay Area.

As I mention in a sibling comment, you might see changes in a decade or two, but no sooner.

I am not opposed to efforts related to increasing the housing supply (although I do think it’s a fool’s errand in the Bay Area as demand is insatiable due to the tech industry and foreign money seeking a safe asset store), I’m just describing the uphill climb these endeavors face. It’s hard to fiddle with a core component of the economy (property law).