Maybe it’s the values of hierarchy, authority, and tradition that churches instill. Maybe religion builds habits and networks that help people better weather national traumas, and thus retain their faith that the system works. For whatever reason, secularization isn’t easing political conflict. It’s making American politics even more convulsive and zero-sum. For years, political commentators dreamed that the culture war over religious morality that began in the 1960s and ’70s would fade. It has. And the more secular, more ferociously national and racial culture war that has followed is worse.

Over the past decade, pollsters charted something remarkable: Americans—long known for their piety—were fleeing organized religion in increasing numbers. The vast majority still believed in God. But the share that rejected any religious affiliation was growing fast, rising from 6 percent in 1992 to 22 percent in 2014. Among Millennials, the figure was 35 percent.

Some observers predicted that this new secularism would ease cultural conflict, as the country settled into a near-consensus on issues such as gay marriage. After Barack Obama took office, a Center for American Progress report declared that “demographic change,” led by secular, tolerant young people, was “undermining the culture wars.” In 2015, the conservative writer David Brooks, noting Americans’ growing detachment from religious institutions, urged social conservatives to “put aside a culture war that has alienated large parts of three generations.”

Why did religiously unaffiliated Republicans embrace Trump’s bleak view of America?

That was naive. Secularism is indeed correlated with greater tolerance of gay marriage and pot legalization. But it’s also making America’s partisan clashes more brutal. And it has contributed to the rise of both Donald Trump and the so-called alt-right movement, whose members see themselves as proponents of white nationalism. As Americans have left organized religion, they haven’t stopped viewing politics as a struggle between “us” and “them.” Many have come to define us and them in even more primal and irreconcilable ways.

When pundits describe the Americans who sleep in on Sundays, they often conjure left-leaning hipsters. But religious attendance is down among Republicans, too. According to data assembled for me by the Public Religion Research Institute (PRRI), the percentage of white Republicans with no religious affiliation has nearly tripled since 1990. This shift helped Trump win the GOP nomination. During the campaign, commentators had a hard time reconciling Trump’s apparent ignorance of Christianity and his history of pro-choice and pro-gay-rights statements with his support from evangelicals. But as Notre Dame’s Geoffrey Layman noted, “Trump does best among evangelicals with one key trait: They don’t really go to church.” A Pew Research Center poll last March found that Trump trailed Ted Cruz by 15 points among Republicans who attended religious services every week. But he led Cruz by a whopping 27 points among those who did not.

Why did these religiously unaffiliated Republicans embrace Trump’s bleak view of America more readily than their churchgoing peers? Has the absence of church made their lives worse? Or are people with troubled lives more likely to stop attending services in the first place? Establishing causation is difficult, but we know that culturally conservative white Americans who are disengaged from church experience less economic success and more family breakdown than those who remain connected, and they grow more pessimistic and resentful. Since the early 1970s, according to W. Bradford Wilcox, a sociologist at the University of Virginia, rates of religious attendance have fallen more than twice as muchamong whites without a college degree as among those who graduated college. And even within the white working class, those who don’t regularly attend church are more likely to suffer from divorce, addiction, and financial distress. As Wilcox explains, “Many conservative, Protestant white men who are only nominally attached to a church struggle in today’s world. They have traditional aspirations but often have difficulty holding down a job, getting and staying married, and otherwise forging real and abiding ties in their community. The culture and economy have shifted in ways that have marooned them with traditional aspirations unrealized in their real-world lives.”

The worse Americans fare in their own lives, the darker their view of the country. According to PRRI, white Republicans who seldom or never attend religious services are 19 points less likely than white Republicans who attend at least once a week to say that the American dream “still holds true.”

But non-churchgoing conservatives didn’t flock to Trump only because he articulated their despair. He also articulated their resentments. For decades, liberals have called the Christian right intolerant. When conservatives disengage from organized religion, however, they don’t become more tolerant. They become intolerant in different ways. Research shows that evangelicals who don’t regularly attend church are less hostile to gay people than those who do. But they’re more hostile to African Americans, Latinos, and Muslims. In 2008, the University of Iowa’s Benjamin Knoll noted that among Catholics, mainline Protestants, and born-again Protestants, the less you attended church, the more anti-immigration you were. (This may be true in Europe as well. A recent thesis at Sweden’s Uppsala University, by an undergraduate named Ludvig Bromé, compared supporters of the far-right Swedish Democrats with people who voted for mainstream candidates. The former were less likely to attend church, or belong to any other community organization.)

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