Liberalism versus Liberalism: An Analysis of Muslim-American Amicus Curiae Arguments Concerning Complicity-Based Conscience Claims

Abstract In 2015, Douglas NeJaime and Reva Siegel identified complicity-based conscience claims as a subcategory of religious liberty claims, which feature objections to generally applicable laws based on religious convictions that harm third parties. Here, we observe that Muslim-Americans have filed or joined amicus curiae briefs in support of litigants on both sides of the recent complicity-based conscience cases of Masterpiece Cakeshop v. Colorado (2018), Bostock v. Clayton County (2020), and Fulton v. City of Philadelphia (2021). This divergence of legal views within the Muslim-American community points to a broader rift in society generally toward issues involving the navigation of identity and faith in the context of American liberalism. In this article, we show that opposing arguments by Muslim-Americans in these complicity-based conscience cases presuppose two different conceptions of liberalism: (1) liberalism as the pursuit of broad religious, cultural, and value pluralism ( modus vivendi ), and (2) liberalism as the pursuit of social cohesion, assimilation, and fraternité among diverse constituencies ( vivre ensemble ). Muslim-Americans who advance a modus vivendi vision of liberalism base their arguments mainly on the view that Islam and other minority religions involve specific beliefs, doctrines, and moral injunctions regarding, inter alia , rules of personal conduct in society that deserve distinctive legal protections. Muslim-Americans who support a vivre ensemble conception of liberalism prioritize the uniform enforcement of civil rights laws over religion-based objections and, in doing so, seek an overlapping consensus between their beliefs and prevailing conceptions of expansive civil liberties.