The idea of population diversity and its benefits seem irresistible both in theory and in fact, as well as an ever-present element of the human condition. In this ground-breaking analysis, Ed West investigates the causes for Britain's disenchantment with a fifty year experiment with diversity gone wrong. He uncovers shocking mismanagement by the politicians on both the left and the right that has created increasingly deep enchantment with immigration and how to manage these problems in a constructive way.