Earlier quoted context omitted.
The point they make in the article is that the rich are going to move to SF anyway, but without available luxury housing they will have to buy up cheaper housing and have it remodeled. So you still get gentrification and network effects, but even higher prices for non-luxury housing than if you'd have just built more luxury housing in the first place.
> The point they make in the article is that the rich are going to move to SF anyway That's what I'm actually unsure about. The article states it as a given without data or addressing regional effects. There are at least some well-to-do individuals who would purchase non-luxury housing in the North Bay, Berkeley, and the Peninsula rather than SF proper. You can obviously point to activity in places like the Mission a…
Blocking luxury housing from being built is bad for poor and rich alike. So I suppose the poor could use it as leverage, in the same way a bank robber could use a suicide vest as leverage, but is this really a good idea? :)