it seemsn't complicated

Respectfully, as a historian I'm going to have to counter that point. Yes, we did take many Nazi scientists and import them to the United States. Many of them became naturalized citizens and were re-educated in American values. This was done because the USSR was actively doing the same thing and we did not want to be losing valuable research and researchers at the start of an information war. These people did contribute to the betterment of humanity even with the stains of their past. I'm not excusing actions of any party, just being objective. But my main point is that these people who were Nazis by and large should no longer be considered Nazis after integration into a non-nazi society. The distro Dev that everybody's angry about still very much wants to be a whiny and annoying Nazi.

https://www.nationalgeographic.com/history/article/operation-paperclip