Personally, my goal is that homeless people can get access to great health care, which usually means housing, mental health care, and job placement, among other things, so that they can quickly get back to work.

All the things you described (besides crack and meth) are a good start. We're missing key pieces, but your apparent solution (make their lives harder until they are driven to a slightly less bad place) is just pushing the problem onto someone else.

That's fine if you only care about your neighborhood, but it's obviously not a solution if your goal is to stabilize society.