My first solution was a hunting season for them but that is not very nice.
Part of my job is to deal with homeless solutions and mediation between businesses and residents and homeless folk. Funny how the cops pawned that off on us who are not peace officers in the last 4 years.
I can tell you this, they contribute nothing to a community and where ever there are homeless there is more crime and trash, so much trash. Most homelessness is due to addiction and/or mental illness in my experience. We have a church that gives them tents and cases of water and such. The tents have become consumables. When we ask them to move, they leave their tent and 500 water and beer bottles, fast food wrappers and such.
I have no solution, but it is a problem, most of these are useless humans. Callous? yes, but true.