Many cities are using "Tiny Villages" in order to house the homeless, the tiny homes have 2 beds, and they have heating and air conditioning, with a locking door. People in Detroit can create jobs in Detroit by manufacturing the tiny homes then selling them to cities all over the USA.
And on Skid Row in Los Angeles there will be new towers to house people. You can have door men, security guards, and cameras, and the crime at the towers can be kept down to zero. It is easy to keep the peace with towers. When I was a doorman / valet for Suzanne Pleshette at Empire West in West Hollywood we kept the crime down to zero. People can run the towers for the poor people just the same as they would for the rich people, and the crime can be kept down to zero. And the towers for the poor can have services to help them.
Salute,
Tony V.