My point is, the political leadership in most of these locations wring their hands and say "oh no, it's terrible, our janitors and nurses and families with litt

My point is, the political leadership in most of these locations wring their hands and say "oh no, it's terrible, our janitors and nurses and families with little kids can't afford to live here, it's horrible" and then implement some sort of half-assed kludge that's only effective at giving naïve folks the impression that they care. Rent control would be one such measure. Other examples are loans with better-than-market terms for certain privileged buyers, publicly-built houses sold at lower than market rates and so on. The market reaching equilibrium for everyone and the local government saying "sorry, but screw you" to buyers is at least honest, if a little heartless from the voters who live there. I suppose it's fair enough as long as other markets with decent job options are available elsewhere. If not, I would classify it as a failure of democracy if a significant portion of society has no better option than to pay most of their productive output towards rent. This probably varies a lot by location; San Francisco wouldn't be the first example I'd use. Maybe Oslo.