In a week dominated by the tragic assassination of Charlie Kirk, Cynthia Miller-Idriss’ insights as the founding director of American University’s Polarization and Extremism Research and Innovation Lab (PERIL) are particularly valuable. Her new book about what she identifies as “the new misogyny and the rise of violent extremism” is entitled Man Up. But its message might be summarized as Man Down in its attempt to temper the violent fringes of what she calls the manosphere. Miller-Idriss, one of America’s leading researchers on violent extremism, argues that misogyny is the cause of today’s troubling rise of political assassinations and mass shootings. Her research across seven countries reveals that hostile sexism ranks among the top three predictors of support for political violence. She traces a disturbing pipeline from seemingly innocuous self-help searches by lonely young men to radicalization by influencers who blend fitness advice with violent scapegoating of women and minorities. Miller-Idriss documents how 60% of mass shooters have histories of domestic violence, yet this connection rarely appears in media coverage when targets aren't explicitly gendered. Her work suggests that what she calls "the law enforcement arm of patriarchy" is crucial in preventing both left and right-wing political violence that has reached levels unseen since the 1970s.

1. Misogyny is a Cross-Ideological Predictor of Violence Hostile sexism ranks among the top three predictors of support for political violence across seven countries, appearing in both left-wing and right-wing extremism. This suggests misogyny functions as a mobilizing force that transcends traditional political boundaries.

2. The Domestic Violence-Mass Shooting Connection is Underreported 60% of mass shooters have documented histories of domestic and intimate partner violence, yet this pattern rarely receives attention in media coverage when the eventual targets aren't explicitly women. This represents a missed opportunity for early intervention and threat assessment.

3. Generation Z Shows Unprecedented Acceptance of Political Violence While 93% of Baby Boomers believe political violence is never acceptable, only 42% of Generation Z holds this view. This generational shift reflects young people's loss of faith in political solutions and their perception that "there is no political solution" to major issues.

4. Online Self-Help Searches Create Radicalization Pipelines Innocent searches by lonely young men for fitness, dating, or financial advice often lead to influencers who mix legitimate self-improvement content with violent scapegoating of women, feminists, and minorities, creating pathways to extremism.

5. Community-Based Early Warning Systems Could Prevent Violence Nearly every mass shooter makes plans and leaks intentions to someone beforehand, but communities lack accessible resources for reporting concerning behavior that falls short of immediate FBI involvement. Mobile advisory centers, like those used in Germany, could fill this gap.

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