What this argument entirely fails to engage with is, that in 98% of places, if you can't get permission to build luxury housing you certainly won't get permission to build lower-income housing https://twitter.com/DavidKlion/status/1216018588018139136?s=20 …
Especially in places like San Francisco, where the process is hard enough that it isn't worth building anything but luxury housing. We can add that banks find it easier to lend to build luxury housing than low-income housing.