Also, in which historical era was voluntary and deliberate censorship solely by private, commercial entities a dominate factor in how things unfolded?
Another fun fact. The communists in Weimar Germany went for the whole "punch a Nazi" thing in a big way, violently attacking Nazi political groups, which directly lead to the formation of the SS (actually a precursor group) as a self-defense group meant to protect the Nazis from communist street violence. That turned out really well for the communists, too!
So indeed, those who fail to learn history really are doomed to repeat it.
> “First, the ban on supremacists will remove Nazis and other extremists who advocate...”
https://www.theverge.com/2019/6/5/18652576/youtube-supremaci...
Of course the reason why no nation has renazified is because Fascism exists as a boogeyman of the left rather than a reality. It is a completely discredited ideology. If you look at every public opinion survey, there are many more communists than there are nazis, even though morally both sides are equally odious.
If you could find a Nazi lurking about somewhere, rather than in the nightmares of radicals, they would never say "Real Nazism has never been tried". Whereas there are actually people claiming to be communists and insisting that communism deserves a tenth or eleventh chance. Nazism is a completely defeated ideology even as communism continues to try to come back from the grave.
It may be time to consider whether the experiment of being permissive when it comes to hate speech has been a failure that has caused more harm than good to society and its citizens.