Not quite. Bullies can be weeded out in a number of ways that don't take aggression in the form of fighting. Don't Inuit do it by simply withdrawing group sup

Not quite. Bullies can be weeded out in a number of ways that don't take aggression in the form of fighting. Don't Inuit do it by simply withdrawing group support and the bully starves? Often individuals can't survive on their own, so if they become ostracized by the group they die off, either starve, get picked off by wild animals, etc.... So the behavior that remains viable is to be aggressive to external groups, but better not alienate the in-group.