That's a disingenuous argument. I remember when the Anarchist Cookbook was banned from my public library. It has nothing to do with "banning books," it is banning wholly inappropriate content for children. Do we want manuals on the library bookshelf laying out how someone could possibly build a bomb? NO. So the book is banned on that, its content, not just a broad claim of book banning.
There's a big difference between banning books and deciding that some books, some content, is just not appropriate for kids.
Go take a look at this list[1] and come back make the same claim. Are all these bans to protect the children? Or is it simply that these books go against the politcal views of these so-called "free speech absolutists"? If you're willing to get out of your bubble, type "maga book burning" in google and hit enter.
