Migration and far-right social movement studies have explored exclusionary politics in different national contexts. These works have explained many of the factors contributing to the hostility against minorities on the grounds of religion, race, gender, and sexual identity. Employing the concept of intersectional bordering (Cassidy K, Yuval-Davis N, Wemyss G, Polit Geogr 66:139–141, 2018), the present analysis dissects how religious, conservative, and far-right organizations employ the concept of the family to promote exclusionary politics. To achieve this, the chapter focuses on the International Organization for the Family (IOF), one of the most prominent representatives of this emerging phenomenon (Kalm S, Meeuwisse A, Global Discourse 10:303–320, 2020). I outline three key discursive and mobilization strategies of the IOF: identity formation, the sharing of resources, and knowledge transfer. Analyzing the organization’s repertoires in Russia, Hungary, Moldova, and Germany, I show how transnational collective action is facilitated through the development of common mobilization strategies, the exchange of organizational resources, and online campaigns. The concept of the family thereby becomes an adaptable repertoire creating new exclusions through contentious politics.