Most discussions of group--‐differentiated disadvantage seek to explain its covert and overt nature through the experiences of dominant groups and their relations to subordinate groups. This is a vertical approach to social injustice. Instead of taking this approach, I take a horizontal approach that seeks to determine whether there are logics that produce disadvantage that are invisible to the vertical understandings of socially constructed group--‐ differentiated disadvantage. To this end, I critically consider the relationships between disadvantaged groups by reflecting on the experiences of Black Canadians and Canadian Aboriginals. Their experiences reveal the underbelly of Canadian multiculturalism and of discourses of membership and belonging. I explore the ways in which these groups have potentially complex and conflicting modes of injustice that elicit potentially conflicting and complex prescriptions. Recognizing this has the potential to facilitate a finer--‐grained sensitivity to the description and potential amelioration of group--‐differentiated disadvantage and to problematize discourses of membership and belonging in their instantiation in current Canadian practices, norms, and governing arrangements.