Last week, Wireless, one of London’s biggest summer music festivals, announced its headline act. That headline act was Kanye West. You know, Kanye West. The guy who released a song called “Heil Hitler” last year, sold T-shirts with swastikas on them only a few months earlier, and once announced on Twitter that he would go “death con 3 On JEWISH PEOPLE.” What could go wrong? It does not take a genius to work out why Wireless did this—the “comeback” performances of a disgraced global superstar will surely sell tickets—but I would argue it does take an idiot not to foresee...