The town I’m in has grown 1000% in the last 20 years. The original residents were almost all from a very conservative religious group. That group had power over all politics back then, and have retained power today. They’re very aligned with removing the books, and there’s no communication to the 90% of parents in the district who, although conservative, aren’t from the previously dominant religious group. They do it quietly, don’t communicate what they’re doing or why, and they just get their way with nobody to object.

People in power pushing their ideology is a common thing. Not exclusive to religious people.