Obvious as it may sound, people with authoritarian beliefs hiding behind free speech actually consider it as a weakness akin empathy. It allows losers like them to amplify their reach despite not being in power. They abandon their “free speech absolutist” postures the moment they think they are in power.
You’ve provided no supporting evidence of this. The loudest, or most successful supporters, appear to have been Jewish attorneys that advocated & won cases on free speech allowing even Nazis to gather, march, speak, etc. Are you suggesting these Jews were actually crypto-Nazis in disguise? Your title indicates you’re referring to Nazis in particular.
I know reading comprehension is harder when you’ve already made up your mind about what I think, but you’re better than this. I hope.:)