In Against the New Politics of Identity, philosopher Ronald A. Lindsay offers a sustained criticism of the far-reaching cultural transformation occurring across much of the West by which individuals are defined primarily by their group identity, such as race, ethnicity, gender identity, and sexual orientation. Driven largely by the political Left, this transformation has led to the wholesale grouping of individuals into oppressed and oppressor classes in both theory and practice. He warns that the push for identity politics on the Left predictably elicits a parallel reaction from the Right,...