[jfman]

You're making the assumption that UK citizenship actually means something, or holds value, for young people in Northern Ireland. I suspect it does not. I suspect it's a lot of union flag waving on another island across the water, and the willingness to disregard the interests of Northern Ireland when it suits the UK.

I also doubt the UK will revoke citizenship. Imagine how furious the genuine unionists would be to be let go. I'd actually pay good money to see that.