Other than merely agreeing with the commentor on this aspect of human nature, I do have a point. I believe to deny the brutality in our nature is extremely dangerous.
I suggest the whole point of civilization is to recognize the destructive potential in us all and to regulate it.
Granted, you may be right. However, the consequence of putting in unnecessary protections against destruction are much more mild than the converse case.
With so many of the comments seemingly endorsing manifest destiny on the part of "civilized" people, I'm beginning to reconsider this opinion.