I think it’s a combination of both these things; the only non-violent thing that really stirs any sort of response that’s remotely emotional is pop music that’s catchy, but only exists at surface level; it’s a reflection of him in a way. His charisma and image mirrors the catchiness of commercial pop music, but when you dig under the surface there’s nothing there, just a hollow emptiness. He can only engage emotionally with something that reflects his shallow pool of emotional triggers.