I am curious whether creating "welfare cities" would be viable. I get that people don't want to create ghettos, but politically homelessless is currently prefer

I am curious whether creating "welfare cities" would be viable. I get that people don't want to create ghettos, but politically homelessless is currently preferable to higher property taxes and density. That is just our current reality. You could locate them in areas that naturally would have a low cost of living (mild climate to keep energy costs low, few natural disasters, no prior pension fund debt for services, etc) and design them to be cheap and efficiently provide some services with a subsidized bus into town. You could avoid restrictions on zoning and building codes that prevent housing that is low cost.