We’d never allow Marxist-Leninist schools to brainwash children so why do we give religions similar rights? Come with me on a flight of fancy. It is open day at the latest educational establishment in a suburban part of Essex. The headmaster, an avuncular-looking man with a fine moustache mounts the stage and smiles down upon his audience. “A warm welcome,” he says, “to prospective new parents from all of us here at the Joseph Stalin Free School in Ongar.”