Recently imposed reproductive rights restrictions have triggered widespread pro-choice protests in countries like Poland and the U.S. This study, conducted online in Poland following the 22 October 2020 decision of the Polish Constitutional Tribunal to strengthen restrictions on legal access to abortion, investigated the motivations of 939 Poles (55% women) to participate in pro-choice protests. We examined how different aspects of gender collective self-esteem and feminist identification were associated with reactance to the freedom restrictions imposed by the abortion ban and with engagement in pro-choice protests among women and men. We found that for both genders, weaker gender identification was associated with higher feminist identification, greater reactance to the abortion ban, and increased involvement in pro-choice protests. However, we observed gender differences in the motivations to participate. Women who perceived themselves as valued members of their gender group, had negative personal views about their gender or felt their gender was undervalued by society, were more likely to engage in pro-choice activism. Men who held negative personal views about their gender or felt their gender was valued by society were more likely to engage in pro-choice protests. This study adds novel predictors to the literature on engagement in pro-choice collective action, offering practical insights into which aspects of gender collective self-esteem should be targeted to enhance feminist identification and support for the pro-choice movement.

最近实施的生育权限制在波兰和美国等国家引发了广泛的支持堕胎的抗议活动。这项研究是在 2020 年 10 月 22 日波兰宪法法庭决定加强对合法堕胎的限制后在波兰在线进行的，调查了939 名波兰人（55% 为女性）参加支持堕胎的抗议活动。我们研究了性别集体自尊和女权主义认同的不同方面如何与对堕胎禁令所施加的自由限制的抵制以及参与支持堕胎的抗议活动相关联。我们发现，对于两种性别来说，较弱的性别认同与较高的女权主义认同、对堕胎禁令的更大反应以及更多地参与支持堕胎的抗议活动有关。然而，我们观察到参与动机存在性别差异。那些认为自己是性别群体中有价值的成员、对自己的性别有负面个人看法或认为自己的性别被社会低估的女性更有可能参与支持堕胎的激进主义。对自己的性别持负面个人看法或认为自己的性别受到社会重视的男性更有可能参与支持堕胎的抗议活动。这项研究在参与支持堕胎集体行动的文献中添加了新的预测因素，提供了关于性别集体自尊的哪些方面应该针对性别集体自尊的哪些方面的实际见解，以增强女权主义者对支持堕胎运动的认同和支持。