Nobody is going to build houses and sell them at a loss or at break-even price, they need to cover their costs and make some profit as well to keep the business alive.
A lot of people in here arguing, bet there are very few of us that have actually built houses before :)
He also mentioned that new requirements going into effect this year were going to add $10-15k per house.
People tend to have a poor grasp on what building a new house actually costs. They cost a lot to build with no gouging whatsoever.
Remote work is solving the housing shortage already though, through opening up living to much wider geography (and locales that don't impede building, such as TX and FL). It will just take a decade or so to normalize.
In-person work forced people to compete over limited housing in small areas
All those cute picturesque towns in the Mountain West don’t have a large supply of homes to begin with, so it only takes a few wealthy Californians to seriously upend the local market with wages paid much higher than what locals can get for their skills.