He's a rapper and has a TINY amount of cursing. In fact many have made the observation that after watching his videos it feels like you got cussed out, but there were no cuss words. Have you listened to other Rap? Everyone reaches a different demographic. Don't put it past GOD to work through the people he chooses. He needs to keep doing exactly what he's doing. His music is not made specifically for Christians, it's made for those who need to hear truth.