This by Russell Moore is incisive — devastatingly so:

Where a “de-churched” (to use an anachronistic term) “ex-vangelical” (to use another) in the early 1920s was likely to have walked away due to the fact that she found the virgin birth or the bodily resurrection to be outdated and superstitious or because he found moral libertinism to be more attractive than the “outmoded” strict moral code of his past or because she wanted to escape the stifling bonds of a home church for an autonomous individualism, now we see a markedly different — and jarring — model of a disillusioned evangelical. We now see young evangelicals walking away from evangelicalism not because they do not believe what the church teaches, but because they believe the church itself does not believe what the church teaches. The presenting issue in this secularization is not scientism and hedonism but disillusionment and cynicism.

Thousands upon thousands of young people are leaving evangelicalism because they have been told all their lives that evangelicals hold up Jesus as Lord and the Bible as God’s Word — and have seen all their lives that many evangelical leaders ignore Jesus and ignore Scripture whenever those witnesses conflict with the leaders’ preferred cultural politics. "And what if people don’t leave the church because they disapprove of Jesus, but because they’ve read the Bible and have come to the conclusion that the church itself would disapprove of Jesus? That’s a crisis.”