Mainstream ideas require censorship to survive. In the 60-70s it was the left that was obsessed with free speech because their views were less mainstream, something many people on the side of censorship seem to ignore.

As glen greenwald says, censorship eventually is always about those in power staying in power. Unless you are in power it’s sad to see so much pro censorship these days.

Read up on Ira Glasser at the ACLU or watch the documentary. Why did he as a Jew defend neo nazis?