I think I’ve seen bits of this on PBS.
Left wingers manipulate the curricula behind the scenes for decades and that’s perfectly fine.
Conservatives attempt to push the pendulum back a tiny bit, and do so publicly, and suddenly it’s a scandal.
What’s important to realize in the debate about who controls what kids learn is the fact that public education is a completely leftist idea. Only leftists seek to control the minds of others’ children. Conservatives (or you could say Freedom Lovers) have always understood that they’re uniquely qualified to teach their kids. Dewey and all those cats knew that socialism can only work when parents have less influence.
There so much evidence, writings, and personal experience out there that obliterate the notion that many conservatives hold on to. Leftist are very good at taking good institutions and turning them bad because that’s what defines them, it’s what they do and their purpose for being. Conservatives, by their definition, cannot and have not successfully take over Leftist institutions. The public schools, in every state, will continue to pump out low information welfare recipients or social justice activists. There will be a dwindling number of people who overcome their indoctrination.
Any push made by conservatives will only create a more affective push back by Leftist. They’ll win because it’s their institution: Designed by them, for them, and after their own image.