High schoolers are going through puberty and many are sexually active so statutes (s. 847.012) banning "detailed verbal descriptions or narrative accounts of sexual excitement" in books are just puritanical nonsense. That would definitely rule out ASOIAF and probably 1984. I'm pretty sure it would even rule out some young adult novels I read in high school and high schoolers are the target audience.
For lower grade levels I suppose there is maybe a more reasonable argument to be had over what is age appropriate but "felony for unapproved books" seems like a pretty absurd conclusion to reach.
Frankly I don't think I need any cover to demonize parents calling for book bans.
I also believe that most of this backlash is about children being able to freely access information that contradicts their parents' worldview. I have also seen strict parents punish their children for expressing differing beliefs and values. Queer kids get physically abused by their religious parents. I absolutely believe schools should be a safe place for students to learn and experiment with ideas and values.
Not to mention, strict informational control has long been a mechanism for abuse. I think there's probably a nexus between parents who object to their kids reading what they want and parents who utilize various physical and psychological abuses as "discipline".
I'd strongly prefer exposing kids, in an age-appropriate manner, of course, to the whole breadth of human ideology and life experiences, with different views on it, and teaching them to think for themselves.
But mostly, I've got a kid that's struggling to read, but has a couple of very strong interests (trains!) that I leverage to get him to read more. Restricting the diversity of books available because they need to go through some slow approval process first, will make it harder for him to access books that he's eager to read. Because the whitelisting process means that even books that aren't even the slightest bit objectionable, won't necessarily be available, and may have to wait until more mainstream books have been approved.