My solution to the homeless crisis is the best:
Tent cities.
Good enough for the army, then good enough for the homeless.
Aircon/heated tents, doctors, good food, no drugs, no booze, clean toilets/bathrooms (cleaned by a contracted company)....etc.
Plenty of spare land in America...not in tornado alley.
It's the responsibility of the federal govt to ensure that every citizen is living a comfortable life.