I don't disagree that it's happened as an issue of historical fact. I'm pointing out that the argument is most often deployed in defense of very much unsuppressed voices. And I'm implying strongly that it's being deployed in bad faith.
I'm curious how you're squaring unsuppressed with the "cancel culture" thing whose very purpose appears to be the suppression of those views.
You're also ignoring survivorship bias. It's no surprise that the victims of majoritarian tyranny you hear from are not the weakest in society, because the weakest in society don't have enough power to command the spotlight. That doesn't mean tyranny of the majority doesn't exist or that they are not its victims, only that you won't hear it from them, because you don't hear anything from them, because they don't have enough power to be heard.
> the "cancel culture" thing whose very purpose appears to be the suppression of those views
Because the "cancel culture" thing doesn't work? The whole concept is nearly a complete fabrication. It's about 20% anecdotes of college kids saying dumb things mixed with 80% paranoia fueled by the conservative media. No one actually gets cancelled, certainly not the white republican men we're talking about constantly yelling (loudly, in a rather, let's say "unsuppressed" manner) about their Free Speech rights.