Libraries are already engaging in viewpoint discrimination though. That’s what this change to policy is trying to correct (whether it is effective at that or not). Librarians and their activist organizations are choosing to disproportionately stock and feature books aligned to progressive ideology, to bolster their personal political goals. This isn’t an accidental conspiracy - it’s literally what the ALA pushes libraries and librarians to do. They just label it in ways that make it sound academic, like “critical pedagogy”.