When Gloria Steinem and Phyllis Schlafly battled for the American soul
“Mrs. America” begins with a cake. It’s a fluffy, gorgeous dome of meringue, left isolated and static on the screen before being shuttled into a crowded political fundraiser. At the fundraiser, the wives of the local elite put on a fashion show; backstage, they chat unhappily about the threat of “women’s libbers.” That housewives-versus-libbers clash…