In this paper, we critically discuss the impact of policy documents on the construction of national narratives on the provision of support for cultural-linguistic diversity in education systems in two European countries. The analysis focuses upon a selection of national policy documents that deal with the planning and provision of HLE since the 1990s. We take critical pedagogy and sociomateriality as theoretical lenses to investigate educational policies on HLE. Thus, this study critically traces the ways in which language ideologies are enmeshed with legislative, political and educational discourses by following an inductive and retroductive process, wherein key-concepts, themes and critical configurations of HLE are mapped, compared, re-assembled and discussed in terms of a complex system. The analysis shows that the (non-)provision of HLE shapes the educational space and the value references and world views that prevail and are (re)produced in it. Emerging deficit perspectives, linguistic assimilation and marginalisation processes limit the path towards more inclusive and equitable educational institutions and practices.