That is the key difference between free speech and censorship. You can support free speech and still remove people for horrible behaviour, but as soon as you start removing people because of the content of their speech, you move to tyranny.
That is cancelling and why people self censor (you're full of it if you say that's not happening), because their content is considered dangerous, not their behaviour.
Just watch, if Musk buys Twitter the mass of woke narcissists will immediately move to demand social media be regulated, after feverishly admonishing Trump for desiring the same thing...