Yeah humans like everyone else and so with their own fair share of nasty evil trash, but I have always envied the simplicity of their lives. It's the same reason many homeless men would rather not rehabilitate when given the opportunity, they get a taste of a simple free existence and it resonates with thousands of years of ancestry in their dna and they can't stand to go back to the complicated micromanaged rat race of modern society. They would rather die under a bridge.