[Amezarak]

I would not be surprised to learn that modern librarians have permanently destroyed and lost more books in the past five years than the Nazis did in their entire reign.

Most of it is less nakedly ideological - its presented as necessary due to the collection size - but certainly not all of it. There are many famous cases if you Google it, and it is happening quietly all the time on the local scale. Talk to your local librarian - I was shocked to learn their methodology.