I think the English are embarrassed to be called British as it unfortunately lumps them in with the Welsh. That is quite frankly unfair. The accent, level of intelligence, sexual 'preferences' (baa, baa) etc of the Welsh leaves a lot to be desired.
I have also noticed that in many instances, a Welshman's mother is often also his sister and quite possibly his aunt.
All in all, a rather peculiar bunch.