From Islamist terror to feminist equal pay campaigns and the apparent Brexit hate crime epidemic, identity politics seems to be everywhere nowadays. This is not entirely an accident. The progressive liberal-left, which dominates our public life, has taken on the politics of race, gender, religion and sexuality as a key part of its own group identity -- and has used its dominance to embed them into our state and society. In The Tribe, Ben Cobley guides us around the 'system of diversity' which has resulted, exploring the consequences of offering favour and protection to some people but not others based on things like skin colour and gender. He looks at how this system has almost totally captured the Labour Party and is spreading relentlessly around our other major institutions. He also looks at how it is capturing our language, appropriating key terms like 'equality', 'tolerance' and 'inclusion', while denying a voice to those who do not play along. The system of diversity makes a challenge to us all: submit, or risk exclusion from society itself.