The emphasis on "taking away libraries" appears to be partly politically motivated.
This isn't about censorship per se since we have a baseline expectation of censorship. We already don't allow teachers to stock racist material or porn in classrooms. This new thing seems to that there are LGBT books which veer close to the edge with stuff like explicit sex scenes.
It mentions other "proposed" laws, some of which seemingly setting a lower bar. But "proposed" laws aren't banning libraries now.
In any case, how can this possibly be an important and relevant issue today contributing to an already-observed decline in reading in 9-year olds nationally?