That may be Nerb, but they were not British and the British government of the day would not have called them "British". Apart from labelling them as Irish scum (which they did) they were called Irish. Could you see the Brit gov soiling their image and lowering their standards? I think not.
How many times were there signs in shop windows or employment ads with signage "No Irish"?
The Irish themselves never ever ever considered themsleves English or British, they'd have died first. We're talking about a people who were down-trodden, kicked off their lands, not allowed to practise their religion, were hated by the English just as much as they hated them, thrown out if rent couldn't be met, in short were treated as less than human. Christ the bloody english thought more of their bloody dogs !
Yeats, Joyce, Kavanagh - Irish poets and writers, would you call them British?
Wolfe Tone- statesman, would you call him British?