I suppose that the "War between the States" was a bad idea as well according to that sort of reasoning.
It is OK with me if you think so, but that is where that sort of reasoning ultimately must bring you.
It is pacifism.
I’m not a pacifist. I strongly believe in the second amendment. I don’t happen to shoot, although the males in my family most certainly do. My views on just war are closer to the Catholic Church, although I’m not a Catholic.