In 2020, the Court held in Bostock v. Clayton County that discrimination on the basis of sexual orientation and gender identity is discrimination “because of sex” and therefore violates Title VII of the 1964 Civil Rights Act. That landmark holding extended federal antidiscrimination protection to millions of gay and transgender workers. But that is not the only axis on which Bostock was transformative. For the past twenty-five years, the Court has adopted a living constitutionalist approach to gay rights—an approach that takes account of “evolving understanding[s] of the meaning of equality” in interpreting old laws. Bostock rejects living constitutionalism in favor of textualism—an approach that eschews “evolving understandings” and seeks ...