I don't think there are many ways in which SF is similar to a "very right wing" city. First of all, "right wing" politicians do not control any city governments in any real way, but if you were to compare SF with say, Houston -- which has radically different policies along these lines -- you wouldn't find that the results are the same.

In the American context, an extreme right-wing city government would theoretically provide very few public services, allow all property to transact in open marketplaces with very little red tape, allow for any use of property to meet market demand. In other words, you could build a gigantic high rise in Noe Valley but the city wouldn't pay for public toilets in any case (but someone could feel free to make pay toilets if they own or lease the land). Left wingers imagine that this sort of arrangement would lead to worse or similar outcomes for the poor than SF currently, but... I don't know, honestly.