A long time ago I lived in a house with a nice deck overlooking a forest with many homeless people. They would try to bum my beer, liquor, cigarettes, and weed as they saw me and college friends doing college things. I offered them fish, bbq steak, dogs, many times over the couple years I was there. Not a single person ever wanted the food. It is easy to begin to feel like these people aren't really people when you spend a lot of time around them but I would never sanction genocide.