Khan is hypercritical of Britain’s history of empire and conquest. In a free country, that is his right. Yet in his anger against Britain’s past he fails to acknowledge that Muslims too engaged in slavery and colonialism. Muslims have a long history of conquest and invasion. At times the book feels simply like propaganda for a Socialist-Islamist, Red-Green alliance rather than a genuine attempt to probe and unpack the issues and concerns that feed tensions between citizens in Britain. By labelling his opponents — “Islamophobe”, “racist”, “colonialist”’ — Khan shuts down debate and critical thinking, rather than starting a conversation.