Bitch modern humans have been on this earth for six hundred thousand years creating an enormous number of distinct and unique cultures which shape the people living under them. The absolute arrogance to think you can generalize a hundred billion people's worth of experience based on what you've experienced in your one tiny lifetime. Humans are so fucking diverse there is VERY little you can say is "human nature." But no please tell me more about how people are just selfish by default despite all the fucking evidence to the contrary.
Blegh anything even remotely negative about homeless people sets me off. We know how to fix it. The solution is both simple and easy. People in power just won't fucking do it because they've internalized all kinds of miserable evil shit.