You’re putting all homeless into a box. Not all are homeless because they are addicts.
Are we not allowed to make generalizations at all? I promise you if you open a homeless center in any major city you will find out very quick that psycho behavior comes with homeless people at scale. It’s a guarantee that you will have meth addicts ruin whatever infrastructure you provide them. It doesn’t matter that there are some good homeless people when you are almost guaranteed to face the bad ones.