They take no note of the claim basic to all Western religion, that God's hand shapes the structure of history. Psychology and home economics replace the immortal soul with the temporal self. Economics classes teach students that they are self-interested utility maximizers. Students learn to value the goods of this world, not those of the world to come. Indeed, they can learn whatever they need to know about whatever they study without learning anything about religion.
Education relegates religion to irrelevance.
It is sometimes argued that because religion is a matter of faith it is not a fit matter for education. But, of course, this too-simple distinction begs all the important questions. If some religious folk believe because of blind faith, most do not. Similarly, many theologians argue that science is itself grounded in faith of a kind. That is, there are many ways of defining reason and faith.