This isn’t really the root of the problem through. The government can’t get more housing through because the voters don’t want it, the voters don’t want it because the traffic is already bad enough and there is nowhere to build more roads, and they don’t consider taking the bus or funding more public transit. And even if you climb that hump you become New York City or Shanghai, both of which are plenty dense with public transit but still not affordable at all.

Seriously, without Singapore-style public housing, you just aren’t going to solve this problem in any reasonable way. But that would ruin housing as a good investment outside of a small niche market at the super high end.