That mechanism usually goes the other way in these escalations - all it takes is one of the school librarians being a stubborn ideologue, not stocking classical literature (effectively censoring) and filling shelves with anti-capitalist pop lit and low-brow Tumblr graphic novels with obscene sexual depictions. It reaches the point where it's obvious to anyone walking into the library, replete with colorful signage on frontal shelves dedicated to narrow progressive fads. The kids post about it or check it out, parents notice. The librarian is named and shamed. Then, sadly, the library overall loses support in addition to the librarian.

The root cause is unfortunately lost in the ensuing battle between library-defending parents and library-critiquing parents, but the ultimate fault in this situation lies in the needless and self-destructive politicization of librarian training and the lack of standards for younger librarians. They seem to lack the common sense that loud politicking is not exactly befitting of a library, nor beneficial for their ulterior motive of gradual ideological persuasion. Another sad case of politicking and safe-space-signaling ideation being prioritized over preserving institutions and professional integrity.