I visited San Francisco thirty years ago and surveyed somewhat the effects of the Loma Prieta earthquake. Collapsed freeways and so forth were still visible. I think of this as I hear the Milennium tower is sinking into the sand - and San Francisco has not been hit by an earthquake for a while. I don't know what the future of building upward in the city will be.
Why not fix up Caltrain? Why not have BART be fixed up and something people find safe and convenient instead of curse?
Decent public transportation is not completely absent in the US. Decent public transport from the East Bay would fix a lot of problems.
I don't think "remove regulation on business" is some stroke of genius, it sounds fairly lazy. Real estate developers are not some oppressed group, they tend to run local politics in most of the country.