Maybe we need some sort of 'kibbutz' plan as a last resort for homeless people?
Give them places to live and teach them to grow food which will help pay for the whole thing. It may not work for all of them but maybe it would help 35% or so of them? That's a shitload more than we seem able to help now.
Back when I lived in Maryland the local Coca-Cola plant shut down, I was trying to buy it to convert the offices into apartments and then tear out the the concrete courtyard to turn it all into a community garden.
Coke wanted next to nothing for it if I was a business, but when they learned of my plans the price was vastly different. I was young and naive and probably could have started a company to buy it.