The banned books movement (on either side) is broadly not about curriculum. It’s about access in non-required spaces such as libraries and clubs.
The issue there isn’t that kids are being exposed to these items, the issue is that other parents are censoring what _my_ kid can be exposed to. They are infringing on _my_ rights.
Meanwhile I’m not requiring their kid to go into a library and checkout Maya Angelou.
Who or what is preventing you from exposing your children to whatever you’d prefer?
The books aren’t banned.