I actually think it's very important that music, literature and art produced by bad people continues to remain in the normal public domain and that kids see it.
My mum has a kids' book by Rolf Harris, which is a guide to drawing cartoons. My daughter's used it for learning how to draw cartoons.
At some point, I informed her about what Rolf Harris had done and why you don't often see stuff by him around these days. She was pretty shocked.
I asked her if she was surprised by the information I'd given her. Of course she said she was. I asked her why. She said that it was a shock, because the book was such a nice book - friendly, conversational and funny.
Yep, I said to her. And there's a lesson in that for you and for every kid. People who abuse children aren't pantomime villains or horror-movie bogiemen who go around cackling evilly and all that kind of thing. They are people who come across as quite normal, and are often delightful when interacting with kids. They have learned to be delightful, because that's their way of getting to kids in order to abuse them.
I think it's actually incredibly important to learn that inspiring poetry, beautiful art, addictive films and thrilling books are often produced by really bad people. It's a way of helping children to be skeptical of the people behind content they consume. It's incredibly dangerous to believe that "This book/art/film is wonderful and moving, so the person who created must be a good person who has humanity's best interests at heart, right?" Yet when we remove content created by bad people from the public realm, that's the lesson we are effectively teaching to kids.