Since the term Britain is Roman, I think most people call them the British Isles. Its nowt to do with ethnicity at all, and since most of us are mongerals anyway - I am Irish and can trace my ancestry back to elizabeth the first of englands time (I stress this as most people dont realise that the current queen liz is queen liz the 1st of scotland)- so the islands are names by some roman git an dunless some one can come up with the pre roman name then thats what we are stuck with. So shall we settle on blaming the romans for all our troubles.

Yours extremely inebriated
John