Yes. And ironically, the one who convinced me of that point is Yarvin/Moldbug. (He actually argued, partly tongue-and-cheek, that Egypt should shut off its internet from the world. And while this sounds outrageous and terrible, remember that he was right about the revolutions in the Arab world, and virtually everyone in the tech world who cheered on the revolutions were wrong).
I think it is fine that some speech is considered beyond the pale. Some speech is in fact dangerous. Power comes from the barrel of the gun -- but speech is used to organize the gun holders. Speech tells the people with the guns who the bad guys are.
My problem is that the wrong people are controlling speech, and for the wrong reasons. De-platforming is being instigated via a heckler's veto -- the biggest cry-bullies try to dictate what is acceptable. I'd rather have speech controlled by an official council selected by a random lottery of citizens, than by self-appointed censors.
And also I don't agree with banning Yarvin/Moldbug in particular. I have found Yarvin/Moldbug to be an amazingly insightful and interesting blogger. The history and sources he has cited has greatly enhanced my understanding of the world. Sometimes he can be abrasive, hyperbolic or a troll, but overall I am better off for having read him. I hate it that I'm scared in real life to mention that I have read his material. I'd rather see him inside the Overton window of conversation.
But the worst aspect of the current attempt to deplatform, is that the line of what is acceptable is constantly changing. If I say "it's silly that someone with male equipment be allowed to use a women's bathroom", does that make me transphobic? Should I be banned from conferences? What about five years from now, when the line has moved? And what belief that is normal now, will be unacceptable in twenty years?