This reminds me of an editorial written by Larry Elder after 9/11:
"Terrorism in America - retracing our steps"
I don't think Elder was saying the U.S. was morally wrong or a bully in any way. He only was asking, "What if...?" There's nothing wrong with wondering, "What if...?"
But it sounds like Buchanan went too far in his book. (I didn't read it, but I wouldn't be surprised, having read "Death of the West".)
We know too much about the goals of the Germans in 1914 to listen to Pat. The only thing new about Hitler’s policy was the virulent hatred of the Jews, which sometimes distorted his strategic thinking.