I don't see the black population in the UK disappearing because of inter-marrying with the white population because even the stats class mixed people separately, even though mixed people marry white people more. Many of these marriages do not necessarily draw communities together and many of the mixed marriages are more likely to fail than others. The UK still has a divide between foreigners and natives, not like segregation, but more like non-integration socially. I don't know if that made sense.