This paper calls for systematic inquiry into the relationship between secular governing formations and education inequalities. We present a thematic analysis of existing scholarship on secularism, the secular and post-secular in education. Our review of 184 texts reveals a frequent implicit or explicit reliance on the liberal state to address religious inequalities in education, and to draw the line on the extent of public religious expression. Taking a critical sociological approach, we argue this reliance neglects the state's regulation, as opposed to its elimination, of the violence of multiple education inequalities. Understanding state sovereignty as an assemblage of forces, we illustrate the need for a cohesive body of research into how secular sovereign power "privatises and de-privatises" religiosity through education, and how race, gender and sexuality are shaped as public or private concerns in the process. We conclude with key indicators for a Critical Secular Studies research and curriculum agenda.