If SF weren't such a liberal city, it would have far fewer homeless.  Part of the problem is all the services that San Francisco provides to people down on their luck.  It makes the city a good place to live if you have nowhere to live.  But some shop owners have lost their patience, and I don't blame them.  I think I'd lose my patience too, after having to hose human feces off of the sidewalk outside my store several mornings in a row.  In some parts of the city (like the Haight, anywhere near GG Park), it's gotten pretty bad.