‘But today, too many people in positions of power behave as though they have more in common with international elites than with the people down the road, the people they employ, the people they pass in the street. But if you believe you’re a citizen of the world, you’re a citizen of nowhere. You don’t understand what the very word “citizenship” means.’ Theresa May’s anti-cosmopolitan statement in defence of Brexit in October 2016 stands in stark contrast to one of her great predecessor’s decl...