That’s local school boards—other schools and libraries have entire “banned books” sections because of that. Nobody is getting arrested for it.

Its not a similar problem. In one case a school board bans books from being in school libraries, in another someone is charged with a sex crime for their literary production. There are magnitudes of difference here.

In high school, I read Vonnegut's Slaughterhouse Five entirely because it was on a banned list. So it can go both ways.