Comment: There's no doubt that homeless campers frequently leave a horrible mess in their wake.  Often, as in this thread of conversation, this issue is lost in the greater debate regarding homelessness, poverty and the level of community support which should be provided.  That "big" question is obviously the center of a very contentious debate and discussion.

The more narrow issue, that horrible mess often (actually usually) left by homeless campers, should be less contentious. IMO, it's not asking too much for people to clean up after themselves....regardless of how rich, poor, or whatever.  It's not that difficult to put your garbage and trash in a big black plastic bag than to simply throw it in the bushes.  

It would also be very self-serving.  The filthy, nasty remnants of homeless camps are usually a central part of the condemnation of the homelessness.  The less offensive the less condemnation.  

Forget the sarcastic "take them home" suggestions... How about giving them a few bags...