How could we, as primates, choose a path of violence and hate over banding together and evolving?
Not only do we endure war as a planet wide society, but we celebrate it. I know countless individuals whom would gladly give up their freedoms and join an establishment of hate, murder, and other unforgivable acts. I for one, have already burnt my draft card, never will I be brainwashed to be violent.
It may be argued that violence is a natural human instinct, but there are measures to keep yourself from acting on these instincts.

I do not have the answer to world peace, and until we all strive for it as a whole, we will not see it. Only in glimpses can we gather hope.

(This is not anti-American, this is a review of humans as a whole.)