You can't completely extinguish reactionary ideas, there will always be people hungry for power, angry at other people and susceptible to lies and misinformatio

You can't completely extinguish reactionary ideas, there will always be people hungry for power, angry at other people and susceptible to lies and misinformation. As in many other contexts, you cannot completely kill an idea, you cannot purge thoughts from people's heads. Keeping those ideas from hurting a society requires vigilance and effort, especially in history education and education of why reactionary ideas are morally and ethically reprehensible. Germany didn't try to hide away what happened or cover it up. There has always been a focus on education and telling the story of what happened, with historical references. What was/is actually banned was the uncritical dissemination of reactionary and fascist symbols, ideas and beliefs. That's why you're not allowed to simply hang a swastika flag from your balcony, but you are very much allowed to hang it in a museum in a historical context that explains what it is, who used it and what it stood for. That's why id Software was not allowed to distribute Wolfenstein 3-D in Germany with the original textures, because it was entertainment and not in a factual historical context. Besides, if the best argument you have for saying something is "I have the right to say it" and not the actual content of what you're saying, maybe that says something about what you're trying to say. Ideas, not speech.