They burn down as Vancouver found out. Not only does it get worse inside than out but then they're back on the street.

It's not a bad solution, sorta. They should just send one to each cheap hotel in the country though. Split the problem up and spread it out so it isn't being reinforced.

By 'work' I mean, for the junkies or the residents. Junkies living together escalate and it spills out. Those walls won't contain them.

Ultimately nothing other than forcing them through rehab will turn them into anything other than drug zombies.