Social movements allow groups of citizens to address and communicate their grievances and can be initiators of change that advances their position in society. However, mobilizing an effective movement capable of achieving its objectives is not straightforward. Movement leaders face a strategic challenge regarding the identity framing they favor in their appeals when microtargeting is difficult: Should they adopt a broad, inclusive identity frame or a more specific, intersectional identity approach? A broad appeal can attract widespread support and face less opposition, but risks higher collective action problems, overlooking urgent grievances, and disengaging vulnerable members of the broader group. Conversely, a specific identity appeal may resonate more with marginalized subgroups and reduce collective action problems by focusing on a smaller base, but it risks alienating influential allies and limiting overall effectiveness. Although existing evidence from the U.S. and conventional wisdom suggest that broad appeals are generally more successful, this study challenges that assumption. Focusing on Chile’s women’s movement opposing violence against women (VAW), I demonstrate that while leaders predominantly favor encompassing identity appeals (women), experimental evidence shows that identity-specific appeals (targeting poor or Indigenous women) significantly enhance engagement among targeted groups without reducing support from broader audiences. I further argue that this effect is driven by high levels of gendered linked fate, fostered by the movement’s efforts to cultivate collective identity and solidarity, particularly among less vulnerable women.