Persuasive and well written. It certainly seems applicable for example to the anticommunist fervor that the US dealt with in decades past for example. On the other hand that passage seems uniquely inapplicable to our modern times which are more free of societal oppression than almost any time previously.

Neonazis, communists, would be anarchists, followers of 1000 cults and political groups many mutually offensive to one another can all be heard at least by millions of like minded individuals even if the rest of society isn't interested. You can even maintain a presence on public social media while advocating for evil and crime so long as you maintain a public face where you keep within bounds and talk about the obvious illegality in private.

It is the lack of societal suppression indeed that is so disturbing to conservatives that they agitate for the large scale restructuring of society to restore the "proper order" greatly to the disadvantage of many.

Their speech is dangerous. It's not a given that they will be defeated. Establishing some standards on platforms to deny them a mass audience while still keeping the wide open internet free for anyone to use seems virtuous.