I'll agree it's not magic, but supply can drop the cost of something below the cost of materials and labor, if you equivocate a bit.
If new houses are going for $250k in your area, old, used, smaller houses should be going for less.
What we need is LVT or better public transport to either give money back to the people who create the value (average citizens) or to create an increase in desirable places to live (as in can get in <30min to work, do shopping etc etc) or more remote jobs for more people so they can move to lcol areas
Unfortunately the nimby's on average are most home owners (60%) and close to be home owners... ~ "temporarily embarrassed millionaires" ~ "everyone starts of libertarians and ends up conservative" aka first you fight for more housing then when you have it you become like the average homeowner...