Diversity, solidarity and the construction of the ingroup among (post)colonial migrants in The Netherlands, 1945–1968

Concerns about the impact of immigration (‘diversity’) on welfare states (‘solidarity’) are widespread among political economists. This article presents an alternative theoretical framework for understanding their relationship. Using social and cultural theory, I argue that it is tautological to suggest that diversity and solidarity covary; both emerge out of the same ideological and material efforts to construct an ‘ingroup.’ I probe this theory with a historical case study of the inclusion of (post)colonial migrants in the Netherlands from 1945 to 1968. Complementing secondary literature with original archival research, I show key state and non-state agents of the emergent Dutch welfare state constructing racial categories by fixing ‘Westernness’ or ‘rootedness’ as a salient determinant of ingroup membership, locating (post)colonial migrants in relation to it, and distributing entry, citizenship and social rights accordingly. An elusive metric of cultural proximity, ‘Westernness’ was under construction at the same time as it was in use, as state officials, social workers, and private charities negotiated its meaning with the public. The article not only compels European welfare scholarship to acknowledge race and racism in its recent past, but also builds theory regarding the influence of identity on redistributive outcomes.