Perhaps you and I find such books objectionable and because of our concerns the librarian pulls the books off the shelf.
However, my next door neighbor finds books with Christian themes objectionable forces the librarian to pull all such book off the shelf.
And then some guy on the other side of town finds books on the American Black Experience objectionable and demands that the librarian pull all such books off the shelf.
And then a a Muslim demands that all books that deal positively with Israel be pulled off the shelf.
Finally, you have a long line of people, each with a long list of books that they do not wish to have in the library. At some point that library will have no books and instead, nothing but empty shelves.
” However, my next door neighbor finds books with Christian themes objectionable forces the librarian to pull all such book off the shelf.”
They already do.
“And then a a Muslim demands that all books that deal positively with Israel be pulled off the shelf”
They demand the authors death.
Don't pretend that libraries are bastions of free speech. The reality is the exact opposite.
Our library has seven copies of one Michael Moore film. Try to find seven copies of any conservative documentary like Mine Your Own Business. Tell me when you find one.