These challenges are more than a hundred years old! We have turned this into a national issue, made national standards and its not clear we are making that much progress. Many US states are effectively large countries. Why don't we let them decide what they want to do democratically. Whether you agree with it or not, it is what happens effectively. In the US you can move if you don't like where you live.
Any library is a nexus of knowledge and learning. They should be in schools.
It appears that today's school libraries and libraries in general have become a means for activist liberal political groups to introduce children to political/social ideas that, perhaps, those children are not yet prepared to deal with (YMMV). As a child I went to the public library for science and they had it in spades. Nowadays the science is still there but the librarians would rather you read something else.
My inclination is to de-fund any organization that pursues a political/social agenda by taking control of established institutions of government (schools, libraries, etc.). If necessary, I would de-fund the institution being abused.
But disassembling the library bookcases is hardly an appropriate woodworking project.