Its his preference. I don't mind the white guys in the sets, I'm also not really focused on them. I think whoever is in the set should be there to enhance the scene for the girl. I can only speculate that this guy can't maintain an erection in the presence of black meat! That's a personal issue. Many of us like to "connect" with the scene, since he's white I guess he has trouble connecting. As Unisex stated, his own personal bigotry. I'm sure he will be fine. There are plenty of black-male less ts scenes on the internet.