They could if the government and NIMBY neighbors would get out of the way. I think you know perfectly well they won't (vote tomorrow to repeal all zoning), so

They could if the government and NIMBY neighbors would get out of the way. I think you know perfectly well they won't (vote tomorrow to repeal all zoning), so we're already in the territory of wishful thinking. And in any case far outside the realm of "could just do it." SF's housing problems are entirely self-created They are not. There are multiple factors involved. The city has essentially the same housing stock as it did 20 years ago, but it didn't have, at that time, anything like the housing crisis like it has now. I'll leave it to you to guess what some of those intervening factors might be.