Yes, and a little more knowledge of Luther, his life, and his writings shows something different than what you are saying. He wrote a treatise called "Can Soldiers be Christians?" where he explicitly states their profession is justified: “The very fact that the sword has been instituted by God to punish the evil, protect the good, and preserve peace is powerful and sufficient proof that war and killing along with all the things that accompany wartime and martial law have been instituted by God.”
Can Christians be Soldiers – The Lutheran Witness
What Luther objected to was not war, but religious crusades. In another treatise (On War Against the Turk,
On War Against the Turk - Wikipedia), Luther chastises the RCC for it's Crusades, stating that the Gospel is not advanced by violence, but by love and sacrifice - a sacrifice Luther is willing to make. But at the same time he reinforces that it is perfectly legitimate for people to protect themselves against robbers, murderers, and other attacks against them.
Parents can punish their children. Police are necessary. Warfare to protect the innocent is justified.
That doesn't make it easy. Living in a sinful world makes discerning when one has crossed the line very difficult. Pretending everything is black and white doesn't aid that discernment.