CIA said:
Why is it not your nationality? I usually go by whats on my passport rather than the name of my state. That does not mean I'm part Alaskan, but that I share a country with a piece of land called Alaska, just as you share a country with a piece of land called Wales.
You're a citizen of the United Kingdom correct? Not of just Wales, Scotland, England, or Northern Ireland.
I must admit I don't get it. Why can't it be used?
To clarify on the history of the British Isles, waaay back in the mist of time there was this country called normandy, an unassuming little place on the north coast of France being the sneaky bugger he was the Norman king, William, forced the most prominent claimant as heir to the English throne, Harold, (The current king having no children the matter was slightly confused) to declare support for William's candidacy. When the king died Harold had himself crowned he then went and fought of one claimant from Norway before rushing back down to the south to get himself killed by William. William then proceeded to set up England as we know it today.
A little while later England got fed up of the sheep shaggers next door with whom we had been fighting for ages so we finally conquered them once and for all. Then we got all the sheep! ;D
The English "conquest" of Scotland is a bit more involved, unlike the Welsh who were basically a pushover because they were too busy with their sheep the Scots like getting drunk and fighting which meant they were harder to put down. Ultimately the fights between the two nations came to a close when a Scottish king also became the English king, throw in the English civil wars for a bit of extra fun in which our Parliament (Our equivalent of the senate back then) decided that the king advisors were misleading him (You couldn't actually directly accuse the king or else you'd lose all your support) and decided the best thing to do was go to war with him. After a lot of farting about in which neither side actually wanted to win Parliament finally got their act straight promised the Scots we would introduce their religion over here and had them capture the king for us, we then let him escape so that we could recapture and execute him. This really pissed off the Scots since he was their king too and they came and fought us and lost. A lot of fannying about and the conquest of Ireland later the only person in England who had any clue what was going on died we fought among ourselves for a bit and the scots got fed up marched into London and plonked the old kings son on the throne.
The conquest of Ireland actually happened a lot earlier but it was during the civil war that they became independent again, once we had won it (and lost it, that's the problem with a civil war) Oliver Cromwell the guy behind the execution of the king and ruler of England for while marched over to Ireland and slaughtered them until they decided maybe it was better to be English subjects than dead.
From this brief overview you can see that the Welsh hate being called English because we stole their sheep. The Scots hate being called English because despite beating us and having their king on the throne twice we still rule them. And the Irish hate being called English because us English are evil protestants who eat good catholic babies for breakfast. As for the English we hate being called English because it is a painful reminder that we aren't American.