Housing prices would tell you there is actually less of everything, relatively. Demand has surged, sufficient supply has yet to be constructed, queue housing crisis. Not enough housing is being built in California's cities.
(Mind you that's just a 15 block area in East Cut/SoMA - I'm not even talking about ALL of Mission Bay which didn't exist 10 years ago or the Van Ness corridor or Mid-Market.)
The problem here is we only started building about 10 years ago (with One Rincon being the first major new building in a long time) and the rest of the Bay Area (for example, Brisbane notoriously) is nowhere near doing its fair share of building.
It's a game of moving goal posts.