[drugme]

The solution is to build houses,

It's one option among many.

And by itself -- most likely not a sufficient solution (or any kind of a game changer).

I just don't understand this stance at all.

Basically the main reason this "stance" is that the locals know better: that simply allowing newer (unregulated) construction isn't going to bring their rents down -- or that is to say: do something about availability in their income brackets, and not just yours and mine -- anytime soon.