Quote from the article:
"It was the result of having multiple pastors tell me, essentially, the same story about quoting the Sermon on the Mount, parenthetically, in their preaching — "turn the other cheek" — [and] to have someone come up after to say, "Where did you get those liberal talking points?" And what was alarming to me is that in most of these scenarios, when the pastor would say, "I'm literally quoting Jesus Christ," the response would not be, "I apologize." The response would be, "Yes, but that doesn't work anymore. That's weak." And when we get to the point where the teachings of Jesus himself are seen as subversive to us, then we're in a crisis."
The book "Jesus and John Wayne" addresses that mindshift in Evangelical thinking.