I’m reminded of folks claiming that their voices are silenced but say so on Twitter, at physical events, on the news, etc.?
The irony seems mind boggling to me.
No. There was for a little while, but the number of avenues that one has for publishing unpopular speech are at a major low vs 10 or 15 years ago.
Now, the internet has reached the status quo of broadcast media prior to it: a small handful of gigantic powerful organizations have total veto over what can be published.
Everyone's words and ideas should be able to live or die on their own merit, and not be bottlenecked by shitty hosting and blanket domain bans in posts/DMs.
There are tons of places where you can post stuff; Facebook will happily censor DMs between consenting adults that contain your domain name when they want to share links to your content to others.
Become too unpopular (or, more accurately, increase in popularity too much with the "wrong" people) and your host will cancel your account. There aren't that many datacenter operators.