What is havoc to you? I live in San Francisco and the homeless and addicts don’t really bother people outside of them existing , which does seem to bother a lot of people. They do shoplift and car break ins are pretty common but it’s not like they’re running around brandishing knives. Most of them are opiate addicts, and you aren’t aggressive or chaotic on heroine.
I agree we need more mental health and addiction treatment but you can’t force people into it. If someone is in pain and don’t see a reason to live outside of drugs, locking them up won’t fix that. Either you keep them there forever or they’ll relapse as soon as they get out. We need to address the societal issues causing this instead of the band aid solution of detainment.