This article focuses on youth feminist political action in Ecuador and Peru and its relationship to contemporary gender hierarchies. I examine how and why youth gender justice activists understand their political action differently from the professionalized adult feminists who mobilize them. Grounded theory was used to collect and analyze interviews with 21 young women and men activists on gender justice. Youth activists seek cultural changes using social advocacy to target the family, household, and intimate partnerships, what I describe as politicizing the sociocultural. They develop new ways of perceiving political action in response to challenges produced by emergent gender hierarchies, which they understand as blurred gender inequalities or processes that simultaneously enable and constrain gender equality.