That is a subaverage intellectual statement, something I wouldn't expect from you, Sentura :/
i don't care what you think about the statement, because it's the sad truth. people want war (albeit perhaps in a more tribal way), the same way people want to argue or create challanges, for the same reasons. the reason we're still seeing so much war, hatred, etc. is because it is in our nature, and it is how we cope with how mundane and trivial our lives have become.
You know, your first statement would've made sense if you were referring to ancient times, when "war" was either about fighting over the best fields to cultivate or there were just a bunch of young men assaulting a town for fun, beating each other a bit with swords and stuff, just for the thrill. Just like young men today engage in senseless brawls (hooligans) or do other, less violent stuff to cope with frustration or to release/reduce their aggressions. It's simply an outlet. That doesn't mean that violence, and war with all the suffering and damage it creates in particular, is a part of human nature. I don't see how it even can be a way of expressing displeasure against powerlessness or whatever. War nowadays is the exploitation of common men in favour of the interests of few. If peace really did bring frustration to people - as a socialogical rule - we would've had several wars here in Europe in the last 50 years.