At a certain point, it just becomes a matter of doing the right thing. While art itself obviously doesn’t hurt anyone, it’s the people who use that art to justify their own terrible agendas or actions that can ultimately be traced back to how they perceived artwork that, to them, encouraged their own perspectives. In cases such as that, the less those people are encouraged, the better.
Well then let's make sure Helter Skelter is removed from the Beatles discography.
That's just one of an endless list of possibilities if you jump down that art-repsonible-for-actions rabbit hole.
I dare say that those who have read the book have not been pedophiles — nor did they go on to encourage or justify or defend pedophilia (as you suggest). I certainly doubt if the book created any pedophiles. It is not sexy. And I don’t think Nabokov is big with the QAnon Reading Groups, as you hyperbolize.