>The idea that good ideas will win, and that common sense and rationality will take the day, are not really supported by what we see around the net. Instead the greater internet fuckwad theorem holds more true, and the spread of vile, violent ideologies is enabled.

The anti-vax movement and climate change deniers are better examples of this than Nazis and similar shitheads, IMO. There's easily accessible, scientifically sound evidence that both these groups are completely wrong. It's not at all open to debate. If the "free marketplace of ideas" worked then these groups would have disappeared long ago, yet the former group has led to almost ten thousand preventable deaths and the latter may result in far more. Maybe the truth will eventually reign supreme and both groups will become a footnote in history, but there are real consequences in letting groups like these spread their views online.

There's a good Contrapoints video on the limits of free speech, which you will probably enjoy (NSFW): https://www.youtube.com/watch?v=IBUuBd5VRbY