War may not be necessary from an emotional standpoint, but from a technological standpoint it is the only game in town. The recent developments in peaceful IT are unique in human history, and they themselves are predicated on war technology and research. In fact, i challenge you to name one area of technology that is not based on war research and military development. I don't think you can name a single device that is not built off of something war related. I have a special place in my heart for the myth of pure science and research. I also believe it could become a reality. I posted ITT about how it might be possible to counter the militarization of our air. I think a few successive generations of scientists who are not affiliated with war making could bring about peaceful advancement, but as it stands now, technology absolutely requires mistrustful nations, reckless generals, and politely amoral science and tech workers.
All of that AI and "machinery" has a military background. They control the purse, so they dictate the purpose.
Surely you are canny enough to know that petty appeals to my "intelligence" only serve to make you seem desperate to be right. All 3 of those things, hell all things, are neither good nor bad. They are merely titles given based on context. Context is everything. A civilian sees a RPV as a killing machine. A EOD tech sees a drone as an insurance policy. A president sees a Predator as a solution. I see a way for normal people to enhance their effect in shaping their world. All of us see the same toy, but we all have a different use for it. Surely you are intelligent enough to understand that context can bring new light to any topic or situation...