Pardon, I should have elaborated.
For him, in the sense that the people who lived through the holocaust and the Nazi regime pay attention to the portent of words.
The freedom of speech here allows people to say clearly what they stand for. It allows the wheat and the chaff to self separate, so to speak.
For you, in the sense that your equating the political stance of the hard right wing today, with those of the Nazis, is backed up by people who lived through that time. It’s also well written, historic and it hit me like a ton of bricks. I thought that you would appreciate the profound nature of that essay.