No, it isn't clear at all.
If it's my turn to be clear, then: no, I don't believe something is true just because it's been stated in public for others to read.
It's important to be able to assess what you read, too. Are books being 'cancelled'?
Well, if they were, we'd find laws prohibiting the publishing of books, and rules about who could or couldn't read books already published. We'd find books already printed being destroyed, and retracted from copyright libraries. We'd find university and school curriculums insisting students should not read or discuss certain books.
What we wouldn't need to find, would be universities changing their set texts from (say) Measure for Measure to Much Ado About Noting. We wouldn't need to find schools saying hey, you know, we used to teach Of Mice and Men but we've decided instead we'll do To Kill a Mockingbird. We wouldn't need to worry about colleagues noting that, since they've taught Jude the Obscure for ten years straight, they have now decided they might do Beloved for a change.
If we're looking for books being 'cancelled,' we'd also not expect to find trigger or content warnings, would we? Because those warnings are clearly issued on the assumption that students want and intend to read the books - otherwise, why issue them?
I don't see any evidence, in the UK, of books being 'cancelled'. The only book I can think of, recently, that was widely reported to have been pulped in large quantities, was Naomi Woolf's travesty of a history where she misunderstood the law relating to death sentences for sodomy, on account of not having done her research properly. Otherwise ... nope, not really happening much, and certainly not as a response to students' requests.