Bill O'Reilly has blamed gay marriage for the so-called “war on Christmas.”

On the Thursday broadcast of Fox News' The O'Reilly Factor, O'Reilly and guest Bernard McGuirk, executive producer of Imus in the Morning, agreed that the war was being led by choice and gay rights advocates.

“The war on Christmas is very, very real, and if you ask me, in addition to some grouchy misanthropic heathen atheists it has to do … at the root of it with two things: abortion and the gay rights agenda, because Christianity is against those things,” McGuirk said. “It's subtle but that's why it's so pronounced in recent years.”

“Hundred percent agree,” O'Reilly responded. “I absolutely agree 100 percent that the diminishment of Christianity is the target and Christmas is the vehicle because the secularists know the opposition to their agenda comes primarily from the Judeo-Christian traditionalist people.” (The video is embedded on this page. Visit our video library for more videos.)

After noting that many Christian denominations support gay rights, ThinkProgress.com's Zack Ford responded: “If anything, it's Fox News who's waging a war on the millions of Christians who don't agree with the network's conservative positions.”