Mindless pacifism is, flatly put, moral cowardice. I can name a dozen situations.. Historical examples or RAR! HIPOTHETICAL SENARIO!'s.. Where a short, sharp act of violence is the sole means to stop far greater evil's from being perpetrated. To shy away from this, to run and hide behind 'Well, uh, violence is bad...' is to allow these evils to run free, under the guise of 'Humanity could get better, really.'.
Well here another aspect of my way of thinking comes into play. I do not believe an individual is responsible for another individuals actions even if he could prevent it but chooses not to. So if person A moves to kill 5 people, and person B is armed and can kill person A before he kills the 5 people, he would still be a murderer if he does (my definition of murder is killing people without their consent, I have no problem with euthenesia and for some reason killing during duels is acceptable to me to, but killing in war is still murder to me), and if I were in the situation of person B I would not kill person A, because I am not responsible for the deaths of 5 people through my inaction, but I would be responsible for the death of 1 person if I would kill person A.
Humanity won't get better. We are the result of Natural Selection, a method which selects the most inventively brutal species to become dominant, those that can wield their violence against their foes and temper it with enough wisdom not to annihilate themselves. If Humanity reaches the point where it can't temper it's violence, it'll blow itself off the map. If Humanity reaches the point where it tosses away violence, some other species will ascend and slaughter us. That's the way of the world. Those of you who've studied the things bandied about in this forum will understand this. Those of you who are mindless parrots will not.
I do not believe we're just a meatsack which was given a bunch of genes when created and got sent into the world to screw around and get as much kids as possible. I've had plenty of experiences that indicated to me that there indeed is something as a soul, unfortunately that is no scientific evidence, and you can always use the "you're hallucinating" argument as well. Before you ask, neither I nor my parents are religious.
Screeching and whining about how things SHOULD be when it's impossible to get there is a classic example of Ivory Tower syndrome. And nothing useful ever came from those.
I'm not the kind of person that's eager to exclude anything from being a possiblility.