I don't know. It seems like from what you saying that you and honestly an enormous amount of people need to actually learn about 20th century European history and WWII. People are throwing around these terms of NAZI and Gestapo and all of this and I think they have no idea what they mean. The left is not against authoritarian. The left does not even want to really eliminate the police. They just want to be the ones to decide who are the thought-criminals and what to do with them. Also, that is not what Gish galloping. I don't know what is happening here.
I do know my history. The Nazi party was a pan-German nationalist party. I'm not sure why this is controversial.
Germans, and Germany are obviously quite sensitive to the dangers of nationalism and authoritarianism. Not just because of WW2, but also the experience of East Germany.