The landscape of American faith is shifting from a diverse “religious marketplace” into a polarized “all-or-nothing” reality. According to social scientist and former pastor Ryan P. Burge, Mainline Protestantism—the moderate middle ground of American Christianity—is on the verge of extinction. In his book, The Vanishing Church, Burge argues that if current trends persist, these moderate denominations could largely disappear within the next two or three decades, leaving a void where millions of Americans once found community and spiritual balance.
The Death of the Middle Path
Burge, who spent nearly 18 years pastoring a church that eventually closed due to dwindling membership, suggests that the “hollowing out” of the middle is driven by extreme religious and political polarization. Historically, Mainline churches like the American Baptist Church offered a “middle path” that allowed for liturgical tradition and individual interpretation of scripture. Today, however, that space is shrinking. The religious landscape is increasingly split between conservative Evangelicalism (often characterized by biblical literalism) and the “nones” (those with no religious affiliation). This leaves moderates—who might prefer hymns and creeds over high-energy worship or secularism—with nowhere to go.
A Disconnect in the Pews
The decline isn’t just about external pressure; Burge points to internal “structural problems” within these denominations. He notes a significant disconnect between clergy and laity, where leadership often leans significantly more liberal than the people in the pews. While many Mainline leaders have doubled down on progressive activism to counter Evangelicalism, Burge’s data suggests this hasn’t been the “magic bullet” for attracting younger generations. Furthermore, he candidly observes that some Mainline churches “succeeded” themselves into irrelevance by becoming so much like secular “country clubs” that they lost their unique theological pull, offering “just a little bit of Jesus sprinkled on top.”
The Cost to Democracy
The implications of this collapse extend far beyond Sunday morning. Burge warns that the loss of ideologically diverse religious spaces is a direct threat to the American experiment. Historically, churches were one of the few places where people of different political persuasions sat in the same room. As Americans “cloister” themselves into tribal camps—where the Right views the Left as communist and the Left views the Right as fascist—the nation becomes increasingly ungovernable. For Burge, the survival of the Mainline tradition isn’t just a matter of preserving old hymns; it’s about maintaining the moderate institutions essential for a healthy, functioning democracy.
