The "Nazi bar" analogy works for centralised platforms, like FarceBook, Xitter and dReddit (although more for subdReddits). It doesn't really work in decentralised networks.

If you think you disagree, keep in mind that the internet is a decentralised network. There are definitely Nazis on the internet. Does that mean that the internet is now a Nazi bar, which we should all avoid until the only people on the internet are Nazis?