You Will Know Them By Their Fruits
The confusion here seems to be mistaking vice (and an expansive understanding of vice, at that) with genuine evil. Vice has to do with weakness; evil has to do with injustice. The Teen Mania obsession with SD&RR winds up declaring "war" on weakness while ignoring injustice. That's not good. Nor is it compatible with Christianity.
The always brilliant Fred Clark from a resurfaced post from 2006.
You could take out "Teen Mania" and "SD&RR" and replace them with the "Republican party", "mainstream American evangelicals" or the "Religious Right".
Abscence of vice is not what denotes a Christian. That's Grace. From God to the Christian and from the Christian to the world around him/her.