I couldn't give a shit if kids were bringing Anarchist Cookbook and images of the tortures at Abu Dhabi prison to school. What the kid and his family obtain on their own through private means and choose to read in a public venue like a school IMO is none of my business.
If the teachers are curating books that disproportionately pushes certain non-academic agendas, though, then maybe the parents ought to have the right to guide the employment of that teacher to make sure it follows the desires of the voters. Criminal charges are insane though.
In this case, Florida has decided to manage that activity by making it a felony to merely happen to have a book on the shelf that's not on the pre-approved list.
Check teacher forums, this kind of over-management and micro-management are major reasons for discontent in the job, and one of several factors pushing good teachers out of teaching.
Translation: Teachers are woke and shoving down the kids throat their political agenda.