You should read Michael Knowles' Speechless: Controlling Words, Controlling Minds. Political radicals have explicitly defined tolerance to mean "don't tolerate dissenting views". I don't have the exact quote on hand at the moment or I would share it, but they were very explicit about their censorship goals.
The book also discusses how there has never been unbridled free speech. There has always been a standard of speech that allows some things said and disallows other things said. What's changed over time is the standards themselves, and many would argue they have changed for the far worse in recent years.
The book also discusses how there has never been unbridled free speech. There has always been a standard of speech that allows some things said and disallows other things said. What's changed over time is the standards themselves, and many would argue they have changed for the far worse in recent years.