Yes isn't the most helpful way, to realize peace? If we do then we will want to learn how to defend/respond in a way that does not add to the conflict or aggression but to appease and neutralize it. This is Aiki; to blend, to harness and to diffuse the anger.
If my objective is peace foremost then my actions will follow my intention to lead others into that peace as well. That is not the easiest thing to do but why not try. O Sensei had nothing else on his mind. He wanted to establish peace in this world beginning with you and me.