Anthony Bradley, as well as a guest author Matt Parker have written two excellent pieces on Hip Hop and evangelicalism. I would encourage you all to read them.
“If Driscoll had praised Nirvana or Johny Cash or the Beattles or Led Zepplin none of his followers would have said a word in critique. Why Jay-Z? Is it because he’s a negro? (think about it).”
Meanwhile, Matt Parker’s criticism of the arrogance of the “us versus them” mentality of Holy Hip Hoppers I believe taps into the essential difference between Christian music and pop music in general.
For my two cents, these articles only affirm studies that have shown that 70% Hip Hop’s consumption comes from white Americans, and so the reason why the Holy Hip Hop genre has this “holier than thou” attitude is not because it is anti-Hip Hop, but because it is geared towards young white Evangelicals as an “alternative” to that other stuff. This would explain the prominence of Calvinist theology in Holy Hip Hop circles. It would also explain the utterly bizarre silence that Christian rappers maintain when it comes to issues of racial and economic oppression, which once served as the primary source of the hip hop culture.