Firstly, and beside the point, the term itself is wonderfully (though I suspect accidentally) ambiguous and self-defeating, as one can read it as “the culture of a cancelling” (as intended) or “this will cancel culure” (a possible side-effect).
Anyway... yes, cancel culture... I criticised it here once previously and amongst the various responses, most contrarian, was one that stuck with me: paraphrasing, it read “you’ve always told us to vote with our feet and now you’re complaining about cancel culture?”
Clearly this responder considered “cancel culture” to be the latest term for “boycot”, but I don’t think that’s accurate. I cannot (yet?) justify even to myself what utterly subtle distinction must exist between the two, but until I do and probably even thereafter I will accept that they do have a point.