“Identity politics” have been an intensely large obsession of the American left or the past forty or so years. Academic leftists have devoted their entire careers and even the organizations of their departments to studying notions of identity and the specific history and interests of certain identity groups—such as women’s studies, African-American studies, and other similar programs. The Democratic Party has put special emphasis on mobilizing various minority groups based on identity, focusing on “Women’s issues” such as abortion or “the needs of the African-American community” such as police reform or “gay rights” to get a certain of segment of voters to turn out in elections.

Yet, with the election of Trump, many moderate leftists are questioning the utility of identity politics. Mark Lilla had a prominent recent piece in The New York Times declaring the “end of identity liberalism.” Lilla’s main criticisms of identity politics focus on it as…