The government could force and pay for construction of massive numbers of condos/townhouses in/around large cities (say 20-40million). Sell them to first time home-owners for extremely cheap (say 200k) with all types of restrictions on it being owner occupied and only allowing the owner to recoup a certain % of appreciation after X numbers of years if sold (say 3% each year lived in).
I’m sure that’s problematic and a team of people smarter than me could come up with a much better system, but there are very tenable solutions with the ability to change laws/policies and a massive pocket-book.
The US used to give away large parcels of land to people just to move out west. So it’s not like there’s not precedence for helping citizens with real estate.
Nothing significant will be done in our lifetimes though, oh well.