Can someone explain this shit to me? Pic....kind of related.
>when we're not murdering each other
We've done that since the dawn of mankind. Over the past 3,400 years there's only been 268 (or roughly 8%) of recorded years of peace in the world.
No. The ones that did survive were the ones who eliminated or subjugated all competitors. There's loyalty to your own group, other than that people have always been wary of strangers.