Black people are relatively well integrated into British society. They largely speak with accents local to the area they live in, while on the other hand even the children of Muslims still seem to speak with this Pakistani or Arabic inspired accent, they don't have so much reservation to living in the same areas as non-blacks (muslims mostly seem to want to live in their muslim areas) and there generally seems to be far less of a culture clash. My answer is black people in general tend to be Christian, so they have no issues with the UK as a society and its Christian foundations, whereas Muslims seem to think the whole world revolves around them and they absolutely detest the Christian fabric of Europe and christian based culture. If they hate Christianity so much it makes you wonder why they moved here in the first place.