Ed West’s The Diversity Illusion has the benefit of being a brazen and breezily written polemic. It is, however, flawed, both in its often-daft analysis and sweeping approach to facts. To pluck a few at random, the author insists that most Tory voters still agree with Enoch Powell, millions of Britons would question the right to contraception, and young Muslims are radicalised by dealing with white liberal academics. West’s arguments are repeatedly undermined by reality. For instance, he points to three London boroughs to prove that diversity undermines education; in fact, London schools have improved so rapidly in the past 10 years – a period of unprecedented immigration – that even children in the capital’s poorest boroughs now do better than the average pupil elsewhere in the country. And to say that aside from food, little innovation has arisen from immigration shows only wilful blindness to both cultural and economic reality. Sadly, such is the myopic vision of misanthropes who live in fear of their country.