I don't think there's something bad about banning the neo nazi alt right. Why? Consider this : in a free speech society, its better to not allow people who are against free speech to express their opinions, or else they could eventually make that there wouldn't be free speech at all. That's the paradox of tolerance. Same with nazis, they're against free speech. They are against the freedom of speech of anyone that isn't "aryan", so they don't want to allow the freedom of speech of a lot of people, so they're against freedom of speech. And also, they're against anyone who isn't a nazi.

So that's why nazis deserve to be banned.