Nationalism is in the air. The scholars may talk about universal values and the need to combat all forms of determinism and essentialism. The media may see the world through the prism of universal human rights. The global elite may meet at Davos and proclaim the ability to engineer a liberal order that can defeat what it sees as primordial divisions. And yet nationalism – as well as other exclusivist tendencies such as tribalism and sectarianism – manages to survive and prosper.