San Francisco’s problems arent much different than the problems of the rest of America (and this can probably be extended to the entire “West”). Money and people with it run the show and are increasing their wealth unsustainably. Any other reasoning about the situation (“DSA” members in city hall) are excuses.
I agree the macroeconomics are important but to say that the architecture of local political power doesn’t matter is silly. Local elections have really direct consequences for social and economic policy in the city.