So then, you agree that we were much nicer to Germans at the end of the Second World War, and that's why they don't want "revenge" today?
We are still occupying them. I have little doubt that were we to leave, there is a good chance the Germans would go back to making trouble again. I think there is something in the German psyche that just begs for a strong man forcing "order" on them and their neighbors.
They seemingly have a preference for dictators.