I think you missed the thread - we're making it nearly impossible for someone to own a rental, it would flood the market with purchasable homes - cratering home prices potentially making the medium drop from $400k to $100k (at least for a certain class of homes), create programs for homeless people to get loans - some kind of step-up, combined with a job, and the homeless would suddenly be home owners and become people contributing to the world again.
I don't think I missed the thread. Crating home prices is basically recreating half of the 20008 financial crisis when people are underwater and unable to move, nor have any financial flexibility. Giving homeless people a program to help them out of homelessness and into some form of housing can be good, but jumping them up to homeowners seems a giant leap. If you get them into a stable job and apartment, they aren't homeless anymore. If they're stable, they'll eventually qualify for a loan like everyone else.