It is my experience though. I don't really care if people can use Twitter/Facebook to write whatever they want in their own name (yes, even harassment and incitation to violence, as long as it is done under your real name). But I do use the 'but corps are people too!' argument because I know it triggers some people who don't like having their arguments used against them.
My radicals friend all do the same thing, one of them even participate to witch-hunt/deplatforming rally despite being morally against it, just to be able to say 'but isn't a corporation a moral person?'. Until this notion is broken (and if we could break Limited liability too...), i don't think anybody can legitimately argue against deplatforming.
So join with anarchist/trotskyist, ecosocialists and all the radical left against corporation as moral person, and you'll find a lot of allies for your freedom of speech fight.
That wasn’t my experience. It seems like people are generally guilty in believing what is expedient regardless of their political affiliation.