Online
Here is how you increase supply and lower costs:
End short term rentals of single family homes and condos
Reform NAR/MLS and end percentage based commissions.
i dont know much about most of the items you listed, but i do know a little about the two above... In the first item above, you are literally suggesting eliminating an entire industry.. it would be like saying “Get rid of Uber and all rideshare services”.. I mean, I realize these arent industries that have been around for 50 or 100 years, but they are still a major part of the economy, and they are legitimate sources of income for people who rent out homes and condos short term.
As far as the other item above, you are suggesting that an entire industry (real estate and agents) change their business model dramatically.. What, would you just pay an agent a couple hundred bucks to help you buy or sell a house? I think the things you listed are very easy to type on a message board, but not very realistic, to say the least.