Richard Rorty outlined the Postmodernist battle-plan in the struggle for students' allegiance: "The fundamentalist parents [i.e., Christian parents] of our fundamentalist students[i.e., Christian students] think that the entire 'American liberal establishment' is engaged in a conspiracy. These parents have a point. When we American college teachers encounter religious fundamentalists, we do not consider the possibility of reformulating our own practices of justification so as to give more weight to the authority of the Christian scriptures. Instead, we do our best to convince these students of the benefits of [humanistic] secularization. Rather, I think these students are lucky to find themselves under the benevolent herrschaft [teaching] of people like me, and to have escaped the grip of their frightening, vicious, dangerous parents"
Pretty scary stuff and they obviously believe it. It's that liberal hubris that can't accept there is something bigger than them in the world.
I'm convinced Christian parents have to start with their children very early on explaining that you must be civil in the classroom, but you do not have to respect or believe the teacher.