The library in my school consisted of a few shelves of dusty books in a classroom that was usually locked.
The 'librarian' was a teacher who made sure nobody came in and moved the books around. That would cause mess and consequently, work.
When I started teaching, I met a number of inspiring school librarians. Proper ones who cared about books and children and the environment in which they encountered one another. As an author, I've encountered even more.
Anyone who wants to go back to the dusty bookshelves and a teacher who is too busy to actually do such an important job needs their head examining. There's a lobby of parliament tomorrow. I can't get there but I can let my MP know what I think. So could you.