To be clear, I'm not suggesting a drug problem is a character defect nor am I implying that these people don't deserve a huge amount of empathy.

I'm just unsure if the root cause is the price of housing (despite there meaning numerous problems to house & relocate them) or if it's due to the drug addiction.

Anyway, obviously I'm for more housing to reduce the price of rent.

There's a youtube channel called Invisible People that interviews homeless people on the streets and the story is very frequently

had job -> got on highly addictive drugs -> everything is about getting another hit -> tried rehab multiple times and want to go to rehab again

And yeah I mean, heroine/meth/whatever is obviously super dangerous & addictive so you can't really blame them.