My homeless friends in Berkeley pine about the good old days before the nuts, tweakers, dope fiends, and dirtbags started to multiply and swarm the community. If HOMELESS people are complaining about the homeless people in your city, you have a big problem.
Anecdotally, a crazy homeless lady was stabbing random people with scissors in my neighborhood last year, and I just checked up on what happened with her. Charges reduced to misdemeanors and set loose back on the streets. Meanwhile uppity rich liberals complain about police treatment of the homeless, and launch anonymous opposition to shelters and new housing development when they come to their neighborhoods. That basically sums up everything going wrong here from my perspective.