You should be allowed to display your beliefs in public, regardless of how enraged they might make others. You shouldn’t be allowed to make direct threats, but anything else should be fair game.
I completely agree with you and @pizzazz@lemmy.world. Keep in mind though that in most European countries some harmless displays of belief are already banned, for example burning the national flag.
Then in Germany and Austria you can be arrested just for looking at a swastika on your phone.