This highly engaging analysis of the contemporary global social and political landscape of trans antagonisms draws specific attention to gender-critical mobilizations of Simone de Beauvoir's account of becoming a woman in The Second Sex to advance and justify trans-exclusionary positions. Through a careful examination and application of Beauvoir's philosophical and political commitments, Becoming a Woman compellingly explores the significance of her notion of becoming not only as affirmative of trans women, but also as an ethical demand to affirm trans possibilities.

More than a reply to gender-critical readings of Beauvoir, this book develops an original, Beauvoirian ethics of gender affirmation that shows why we ought to challenge trans exclusion and anti-trans movements.