In the United States, Protestant Christian identity is the dominant religious identity. Protestant Christian identity confers status privileges, yet also creates objectionable status inequalities. Historical and contemporary evidence includes the unfair treatment of Mormons, Native Americans, Muslims, and other religious minorities. Protestant Christian supremacy also plays a significant role in bolstering anti LGBTQ prejudice, xenophobia, and white supremacy. Ways that Protestant Christian identity correlates with objectionable status inequalities are often neglected in contemporary political philosophy. This paper aims to make a (...) modest contribution towards filling that gap. Some forms of inequality linked to Protestant Christian supremacy can be characterized as domination and oppression. Other instances include barriers to fair equality of opportunity for self-determination. Adapting ideas from egalitarian political philosophy I propose an analysis of objectionable status inequality rooted in Protestant Christian supremacy. Alan Patten’s defense of an egalitarian principle for assessing the effects of law and policy is helpful for this task. (shrink)