Now we're getting to my point this entire time. These behaviors aren't a western or even a homo sapien thing. Of course humanity has the ability for peace but over all known history that really hasn't been the case. People want what they want and they unfortunately are willing to use force to get it. In the case of genocide it can be two groups who mutually believe they are not safe so long as the other exists so the fight never ends until one is wiped out fully. As they say, until your enemy becomes your friend the war is never over. Although honestly at the end of the day it's about power and genetic propagation. Arguably everything is about genetic propagation for organisms.