An English identification can be tricky in some contexts, and I suspect that might be a factor.

I was in a dance hall in Kerry one. There were flags around the walls of the countries Irish emigrants have ended up - which meant just about every country there is. But one exception, no English flag. Scotland, Wales, yes, no England.

And I know myself, I'm London Irish, but never in a million years would I call myself an Irish-Englishman, and I don't know anyone who would.