According to the Pew Research Center, the Christian share of the population has declined in recent years from 78.4 percent to 70.6 percent. At the same time, the number of Americans identifying as religiously unaffiliated – including atheists and agnostics – has increased from 16.1 percent to 22.8 percent. The study attributes the changing religious landscape largely to millennials, who attend church far less than previous generations. But the trend is noticeable among older demographics as well. So what are to we make of these findings?

They should be seen, in part, as an inevitable result of the politicization of Christianity. Politics and religion have always made uneasy bedfellows, but there was a definitive shift in America’s political and religious culture in the 1940s that set Christianity on its current course. As historian Kevin Kruse notes in a recent essay , it was during this period that Christian America was co-opted by corporate America. Following the Great Depression, Big Business had something of an image problem, and needed rebranding. Also problematic was FDR’s New Deal, which was indispensable to the middle class but anathema to corporate interests.

Industrialists realized, Kruse writes, that, “As men of God, ministers could voice the same conservative complaints as business leaders, but without any suspicion that they were motivated by self-interest.” Kruse goes on to explain how religious authorities were recruited by business leaders: “It was a watershed moment – the beginning of a movement that would advance over the 1940s and early 1950s a new blend of conservative religion, economics, and politics that one observer aptly anointed Christian libertarianism.” Under the guise of this ideology, American clergy began to demonize the state: individualism was exalted; secularism was synonymous with socialism; and collectivism became the preferred boogeyman of businessmen and Christians. In short, capitalists purchased the pulpits of preachers, who equated economic freedom with spiritual salvation, God with limited government.

This alliance paved the way for the prosperity gospel, a preposterous doctrine according to which godliness and wealth are one and the same. Although the prosperity gospel emerged in the late 1940s as an independent Pentecostal movement, it aligned perfectly with the free market theology of Christian libertarianism.

Much like Christian libertarianism, the prosperity gospel is a swindle, a half-baked justification for hucksterism and greed. It’s also an affront to Christ, who told his followers “to sell what you have and give to the poor,” to deny one’s self and “take nothing for the journey.” I’m not a Christian, but these are clearly not the words of a libertarian or a capitalist. That anyone could wrest a doctrine of self-interest out of Christ’s teaching is a miracle of misinterpretation. Christ was a prophet, not a profiteer. Prosperity theology is the gospel of those who want to feel good about serving themselves, who want to make a virtue of vice. And it’s alive and well in America today, thanks, in part, to the corruption of Christianity by entrenched economic interests.