R230 - At $500M you were a bit low. With numbers like that it's clear that there isn't a solution being proposed, the homeless are just being used for a proxy cash harvest mechanism. Like in the "war on drugs", there's always a monetary driver for the astute middleman.
Drugs are easy - decriminalize drugs, subsidize domestic production by "mom 'n pop" farms only, set up Federal Drug rehab camps with beds, toilets, kitchens & let evolution take its course. No TV, video, electronic games or internet, just community gardens, small livestock & a real book library. Anyone testing clean for 30 days gets to function as "medical help assistants" and let them clean up piss, shit & vomit for 90 days for the medical folks. Still clean after that stint, give them $10K and let them out. Folks that learn will stay out, others will cycle thru again. Some will stay on as semi-permanent stoners. "Failures" get photographed & buried in a trench Viet-Nam style. We as a country overnight stop subsidizing terrorism around the world & eliminate much of the domestic crime issue. We also put a huge multi-billion dollar "law enforcement" industry based around "controlling drugs" out of business overnight. Drugs have never been controlled, just severely monetized. Supplying the need in-country stops the money-sucking lie. Folks stay clean because they have the will to do so, the same reason we aren't all hopeless alcoholics. Laws already exist banning working, driving or operating equipment impaired.
The homeless need shelter, some food, sanitation & medical care as lots of them are just older folks with no options. To keep things real, you need to put the able-bodied to work and pay them, like the CCC programs did in the 1930's. One thing they can do is function as Park & city street cleaners. Another is to bus them out to the brush filled forests and let them assist in fire-fighting prevention by removing & clearing vegetation from around State & private structures, and for the more able even the "back-country" forest. Fires already cost tens of billions in damages to the California economy, so the money is there for some prevention. Giving homeless folks a paying job keeps them out of other trouble and is a "Christian" thing to do, help your fellow citizens. Job training classes and general education could provide other useful methods of filling their off hours, again reducing "mischief" opportunities.
And for the drug-loving percentage, that's where the Federal Drug Rehab camps come into play. You can stay there semi-permanently, cheaply staying stoned until you shuffle off, or you can bootstrap yourself back with a nice paycheck to start off with if you step up and clean up. Either way, these camps would be WAY EASIER on everyone else than living daily with the actual cost of illegal drugs. The ONLY GUY keeping you off of drugs or alcohol is that guy in the mirror. Just my $0.05...
https://www.hoover.org/research/only-san-francisco-61000-tents-and-350000-public-toilets#:~:text=San%20Francisco%20estimates%20about%208%2C000,about%20%24106%2C500%20per%20homeless%20individual.
The city’s 2020–21 budget for the Department of Homeless and Supportive Housing is about $852 million. To put that in perspective, Sacramento’s city budget is about $650 million, which covers all public services for their population of over 500,000.