Reading a pseudo-conservative book ban take.
1) Quite a number of other countries don't ban Gender Queer or restrict it to R18. Some of these countries which don't are quite conservative.
2) These people get offended by the fact there is a book "somewhere in the library" because what we're really dealing with are concern trolls.
This isn't much better than the classical poorly constructed "what if they see porn on the Internet" puritanical argument. Who cares?
3) While it has a bit to do with this book, it has more to do with someone censoring a load of other books, even censoring books in public libraries (not even school libraries).
4) Quite often, people who want to ban this book want to ban it state-wide, or even, nationally. And not just to minors.