GP didn't mention free speach anywhere. Yet you still take the liberty of defining words they didn't use for them.
>Comments like yours seems to reveal a lack of a consistent principle underlying your argument
cancellation is a societal issue, free speech is a legal issue. GP didn't say "we should make cancellation illegal" they said cancellation, which "a significant proportion of our society has become totally OK with" combined with surveilance, will cause even more cancelation. That is bad. (And I agree, btw.)
You can have fair laws and still have an unfair population obsessed with censorship and cancellation. That's bad, but doesn't mean we should make it illegal. Complaining about societal failaings does not have to mean advocating for those people's views to be made illegal. That seems to be something that censorship and cancellation advocates can't seem to understand.
>Should I not have the freedom to organize a protest of my local theater for hosting a controversial figure that I think is worthy of cancellation?
You have complete freedom to do that, but it doesn't mean you should or shouldn't. That's what GP is saying. And cancellation can be over extremely petty or unfounded things. Obviously there is a line but people have taken a "cancel first, ask questions later" approach, and over increasingly petty reasons. One can advocate against that without being against free speech, which means that the government cannot make speech illegal.