Even if producing a record supply of housing units could guarantee solving the affordability issue, actually building that much housing with viable density comes with a steep price tag. Even advocates of mass housing admit as much. If we don’t go after the land value itself, we are essentially trying to deflate a balloon by blowing on it.
If they are living in it, they are benefiting from massive subsidies toward the suburban development pattern despite the fact that it is known to be financially unsustainable. Essentially tax dollars are being funnelled out of the pockets of people who live in more economically efficient housing and are being spent to prop up their suburban lifestyle.
I’m not saying they are complicit, or malicious. But yeah they are leeching value out of the economy by supporting and living in that kind of house.
And yet, we see lots of new suburbia being built while many higher density projects face push back and NIMBYism.