Anyone who thinks to diverge even slightly from this now officially accepted view, to be held by everyone everywhere in the world on pain of excommunication, is a racist. We know this because of the recent experiences of children’s author Anthony Horowitz, who briefly committed heresy over the weekend when he dared to suggest that Elba was perhaps too “street” to play a suave, Eton-educated, Senior-Service-trained, half-Swiss, half-Scots secret agent.