You have it all wrong. Housing is expensive because investment firms are allowed to buy up entire neighborhoods thus slashing supply.

Building new homes doesn’t change the equation as these same investment firms are buying up new homes as well.

They control the market because they own the majority of it. They prop up home prices and rental prices. They’ll sit on empty homes just to maintain said control.

If you want anything to change the first step is stopping companies from investing in homes.

Any other fight is pointless.