The current growth of the Christian nationalist movement in America advocates for incorporating Christian values into the public sector, highlighting the increasing entanglement of religion in politics. As this occurs, America’s democracy and religious freedom must not be undermined. Examining the rise and fall of religious separation in the United States, I aim to demonstrate the urgent need to safeguard the separation of church and state. This is about the imperative urgency of protecting diversity and ensuring freedom for all in a time when our coveted wall of separation is crumbling.

The research shows that the United States was founded on a deliberate separation of church and state, shaped by figures like Thomas Jefferson and James Madison to protect religious freedom, but this boundary has shifted over time. Supreme Court rulings—from Engel v. Vitale to Kennedy v. Bremerton School District—illustrate an ongoing push and pull over religion in public life. Since the late twentieth century, movements like the Moral Majority under Ronald Reagan have increasingly tied religion to politics, contributing to the rise of Christian nationalism, which claims the U.S. is a Christian nation. However, many of these claims rely on weak historical evidence, such as exaggerated portrayals of George Washington, and broader evidence suggests that when religion and government merge—as seen in events like the January 6 Capitol Attack—conflict tends to increase. 

Overall, the findings suggest that the separation of church and state is gradually weakening as its original purpose is reinterpreted from protecting religious freedom to limiting it. The rise of Christian nationalism challenges the idea of religious neutrality and risks excluding minority groups, while ongoing legal and cultural debates show the U.S. remains divided on this issue. More broadly, the evidence supports a consistent pattern that combining religion and government intensifies political conflict, an idea echoed by Blaise Pascal. Ultimately, this reinforces the argument that secularism does not oppose religion but instead protects it by maintaining a neutral space where diverse beliefs can coexist.

The separation of church and state has been a foundational principle of the United States, intended not to remove religion from society but to protect it from government control and prevent conflict. While this boundary has weakened over time through political movements, legal shifts, and the rise of ideas like Christian nationalism, the evidence shows that blending religion with government consistently leads to division and instability. The experiences of the United States, as well as historical and global examples, demonstrate that maintaining a clear separation is essential for preserving both democratic stability and religious freedom. Ultimately, secularism should be understood not as a rejection of religion, but as the framework that allows it to exist freely and equally in a diverse society. 

Secondary:

Copson, Andrew. Secularism: Politics, Religion, and Freedom 

Jacoby, Susan. Freethinkers: A History of American Secularism 

Whitehead, Andrew L., and Samuel L. Perry. Taking America Back for God: Christian Nationalism in the United States 

Ansley, Laura. “The Role of the Bible in the Founding of the United States and Religious Mandates in Public Schools – AHA.” 

Primary:

Public Religion Research Institute “Christian Nationalism Across All 50 States: Insights from PRRI's 2024 American Values Atlas.” 

Pew Research Center “Growing Share of U.S. Adults Say Religion Is Gaining Influence in American Life.”