Fair enough, but why all the anti-Americanism? Pacifism just makes no sense to me anymore. Think of the 20th century. The one time the Americans were truly dormant in foreign politics were the years 19-39. Never joined the League of Nations, were willing to let the Manchurian incident/German re-armament take place. This essentially led to WWII. It's all well and good saying that it shouldn't have happened, but it did, and the only way to sort it was the defeat Germany.
We'll use your logic.
1. If Nazism could survive without Hitler, then Germany had to be taken step by step. No chance of winning hearts and minds if the nation was so strongly supportive of Nazism.
2. Nazism couldn't survive without Hitler. This is more the case. Hitler was Nazism, pure and simple. That said, killing him was never going to be easy. Indeed, it would have been almost impossible.