Self-deluded ideologues, they seek to brainwash children, hamstring rational inquiry and force humanity kicking and screaming into the thirteenth century.
While it is tempting to dismiss them as outright stupid, the fact is that they are quite intelligent. They ignore or distort evidence by choice and deliberately discard every intellectual principle of the post-enlightenment world. Their world view is not simply the product of botched education. In point of fact, it is something much more insidious that must be corrected and resisted at every opportunity.