Nothing ever seems complicated to ideologues. Anyway:
1. I support housing first. I only meant that it won't stop them from using. But as you say, better they use indoors than on the street.
2. They have access to meaningful treatment. They routinely refuse it. Surprise, meth and heroin are extremely pleasurable.
3. Everywhere is hiring right now. Standards for entry level work are lower than they've been in a long time. I am not a Calvinist btw. I am not even religious. I do not consider myself conservative, and don't think projecting sinister motives onto anybody who points out the emperor's nudity does anything to clothe him.
4. I have been homeless before. I did not start using, because I have opposable thumbs, all my original teeth and a triple digit IQ. I would also be ashamed to seek refuge from pain in a way that turns my problem into a problem for the entire surrounding community to clean up after.
Adding a costly, powerfully addictive and neurodegenerative habit to my long list of problems would have only guaranteed I could not solve them and would remain trapped where I was. Nobody came along to force me to start using.
If some asshole is going around forcing the homeless to start using, then absolutely you have a point. If not, then you don't, you're simply unwilling to hold anybody accountable for bad decisions, no matter how bad they are.
As an aside, I went about three months in constant excruciating dental pain recently as the nerve pulp in one of my molars died. It took a month before I could get an OHP covered examination & temporary filling.
Then another month before they examined it again & put in a permanent filling. Then another month before they could examine it again & tell me I need a root canal.
I laid in bed some nights during that wait screaming and crying in the worst pain of my life, unable to eat or sleep. I was given a prescription for potent painkillers. Understanding these to be an addiction danger, I made sparing use of them.
It is not somehow magically impossible not to make literally the dumbest, worst, most self destructive choices humanly possible. There exist other drugs for example which would fill the need for relief and escapism without being chemically addictive or neurodegenerative. I suppose now you'll explain why they absolutely need to take meth and heroin, specifically?
4. Yes, we agree on this. Mental institutions never should have been shut down without any followup plan, or arguably at all. But this is only half the solution. The other half is forcing "treatment resistant" addicts to go, and keeping them in there for longer and longer stays with each subsequent infraction.
Probably that's where we differ, but I am unconcerned. Your thinking caused this mess and continues to exacerbate it. But never, under any circumstances will you look in the mirror and admit to this, nor feel stupid, ashamed, or responsible for the logical consequences of your beliefs put into practice. I cannot change your mind, but hopefully I can get away from you.