Sweeping generalizations of the unhoused are rampant. And unwarranted.  This "us vs. them" mentality contributes to excuses ('not my fault') and serves to further divide us (most of us are human..but I don't know the %age). Why has Eugene lost 30% of its' cyclists? Well, why has it? This brings to mind Samuel Clemens: lies, damn lies, and statistics. To blame the homeless is...well, I believe Sam.  

Prejudices are learned behaviors.  It's unfortunate to hear of disgusting behavior, on both sides. I was taught this: "There is no more neutrality in the world. You either have to be part of the solution, or you're going to be part of the problem" (thank you, Eldridge Cleaver, for pointing out the obvious). I choose the former. 

I run along the river between 4-6 am and have never had a problem. I wave & say hi. That's civilized; to greet another human.