There's a strong force of addiction intertwined with horrific mental illness that may never be cured, Jammer.  I've seen many of the homeless up close.  Can't get out of my vehicle without someone running up to my car window banging on it to see if I have some change or bills.  There's no escaping the homeless.  They're in our face whether we like it or not.  Casting a drag net and scooping them up and placing them gawd knows where is a hapless option.