I Was Listening To A Podcast Discussing The Question Of What To Do If A Library Book Isn't Just Objectionable

I was listening to a podcast discussing the question of what to do if a library book isn't just objectionable but has dangerously wrong information- in this case, advice to feed your infant raw milk- and they were conflicted about it because they didn't want to pile on the book bans. As someone who is not yet a librarian but has done a bunch of research on how libraries work, here's my advice if any of you have a similar situation:

Libraries get rid of books all the time- it's the only way they can find room for new books- and the first books to go are outdated legal and medical textbooks, where incorrect information could get a person killed or arrested. So if you find dangerously incorrect medical information in a book, please tell a librarian! You don't have to petition for a book ban, just politely bring it to the attention of the reference librarian! If they decide you're right, they'll remove it, and if not, they'll keep it. It doesn't make you a member of Moms for Liberty if you alert them to something they missed when weeding.

(Librarians who see this, feel free to add on if there's more to it!)