“…so suggesting we should simply relocate to solve all the unpleasantness always seems like a bit of a damn cheek to me.”
No more of a damn cheek than suggesting that the 440,000 or so who voted in Northern Ireland to remain should somehow override the votes of more than 17m (including around 350,000 in NI) who voted to leave, Ikky. There’s no other practical solution. Those who feel so unhappy and unsettled about leaving the EU will have to move elsewhere if they want to remain within it. The UK has voted to leave; NI (along with Scotland, and Acacia Avenue down my way who I also understand had a majority of “Leavers”) was part of that vote and some of them are disappointed. Constantly harping on about small constituent parts of the UK voting against Brexit are not at all helpful. There should be no unpleasantness. A UK-wide referendum was held on the UK's membership of the EU and the Brexiteers held sway. If NI feels so strongly that its interests are not best served by being part of the UK the answer is simple: start an independence movement and secure a referendum as did the SNP (which they lost). Otherwise, so long as NI remains part of the UK, it will have to abide by decisions which are taken for all of the UK, as will Scotland and Acacia Avenue.