How different opinions in Black Lives Matter (BLM) regarding the notion of ally shed light on social movement and ally studies

'Black Lives Matter' (BLM) is a conflict about central societal norms, embodied by activities and social actors . Those actors share a common vision but differ on some points. Combining several kinds of data (digital ethnography, interviews, and observation), this article argues that one of those dissension points is the activists' valorization of the notion of allyship, particularly white allyship. Critical Race Studies and Ally Studies assume that working towards allyship is inherently desirable. However, three ideal-typical positions exist within BLM regarding this statement: adhesion, partial adhesion, and rejection. Analysing those positions puts light on moral and strategic considerations that contribute to structuring BLM into several complementary trends.