@Bongolian "in US public schools" is a really key sentence in this report since it really debunks the framing that these politicians are trying to promote.
No, books aren't really being banned here. Rather public institutions are deciding the public policy outlines around which the public schools are to operate.
That's just government governing itself.
People are free to have whatever books they want. Their civil liberties are unaffected.
It's just that public schools are operated by the public under the terms that the public wants them to operate.
If anything this is a good reason to talk about not relying on the very institutions that are being criticized here.