My personal experience is that many, if not most, younger Catholic priests have had extensive positive experience with D&D. The literally most staunchly "conservative" priest that I know (former Marine, Latin Mass advocate, etc.) also has the largest AD&D collection I've personally ever seen. The latest D&D book was written by a Christian cleric, for that matter.
So "Christians" as such aren't in conflict with D&D, certain subcultures notwithstanding.
Excellent point sir--I have changed it to be conservative evangelical Christians (since I think this is the correct theological description?)
I've heard quite a few former military are into D&D--when you're on base at peacetime, there's a lot of dead time to kill.