The polls that show more Americans abandoning organized religion don’t suggest a dramatic uptick in atheism: They reveal the growth of do-it-yourself spirituality, with traditional religion’s dogmas and moral requirements shorn away. The same trend is at work within organized faiths as well, where both liberal and conservative believers often encounter a God who’s too busy validating their particular version of the American Dream to raise a peep about, say, how much money they’re making or how many times they’ve been married.

These are Dan Brown’s kind of readers. Piggybacking on the fascination with lost gospels and alternative Christianities, he serves up a Jesus who’s a thoroughly modern sort of messiah — sexy, worldly, and Goddess-worshiping, with a wife and kids, a house in the Galilean suburbs, and no delusions about his own divinity.

But the success of this message — which also shows up in the work of Brown’s many thriller-writing imitators — can’t be separated from its dishonesty. The “secret” history of Christendom that unspools in “The Da Vinci Code” is false from start to finish.