>The ban on swastikas in Germany is an authoritarian law,
With this type of logic, all laws authoritarian then, like speeding laws, theft laws, and anything else that prevents you from doing what you want to do becomes authoritarian.
“Expression” is a bit of an overloaded word here. Carrying a swastika is considered similar to hate speech. Just like you cannot just make death threats in the U.S., even though you are just “expressing” yourself as long as you do not carry out the threat. Not saying those are exactly the same, but there are limits to expression, and spreading hate against large swathes of people is considered like that in Europe. Especially because that kind of speech can at some point turn into actual physical violence against the groups in question.
Threats aren't illegal because of their information content, they're effectively evidence of intent to commit violence. It's like confessing to a crime. You're being punished for the crime, not for the admission, but you admitting to it sure makes it easier to prove.
You and the parent both made good points. In Germany a swastika might be seen as more of a direct threat of specific action than other places. That makes it more sensible to classify as a threat.
That's the argument authoritarians use when they want to censor something. The problem with it is that it proves too much. Do we also get to apply it to symbols of communism because of the millions of people who died under Mao, or the US flag because of slavery? What about that book Marx wrote that led to all the horrors under the USSR; can't displaying books also be symbolic?
You don't want the government to have the power to decide things like that. It's better that they censor nothing.
With this type of logic, all laws authoritarian then, like speeding laws, theft laws, and anything else that prevents you from doing what you want to do becomes authoritarian.