The thing is Xenia, I would find that a slightly irrelevant and largely negligible post, and I thought your earlier deleted post was probably the result of over-zealous reporting... but on another thread with these same posters you said you had out your O and A level history papers and had studied lots about Ireland and then in the same breath said you didn't think it mattered whether NI decided to stay with the UK, unite with Ireland or whether we took back the whole island. I don't know if you are really so lacking in empathy and common sense you genuinely mean that or whether you are just trying to score a pathetic 'win' in a 'game' in which you have no skin but repeatedly refer to "ancestors" to block that accusation.
And actually my point that led to these element of the discussion was not "meh, nothing to do with me mate" but that it wasn't actually surprising that - other than those with ties to NI via family or sectarian football alliegances or whatever - people who'd never been to NI, known anyone from NI or feel they have any reason to visit NI in the future and had not grown up through The Troubles were not "passionate" about NI being part of the UK and were only discovering the complexity of the situation via May's reliance on the DUP and the backstop issue. This thread revealed that a significant number in ROI don't want the hassle of NI and it's therefore not surprising that a significant number of the UK feel the same way.
As to your point that Remain-voting "English" (Brits) are not responsible for Brexit and the problem that poses for NI... actually I think you can well make the argument that we are exactly the people who need to consider our responsibility TODAY (not for what our parents, grandparents or anyone else was up to). We spent a lot of time worrying about Islamaphobia and racism towards immigrants of first and multiple generations, and debating whether "colonial statues" still had a place at universities and such like and we totally ignored what people, today, in our country were feeling, which was that no one gave a shit about them. "We" elected Cameron on a manifesto to hold the referendum thinking Leave would never happen because we didn't listen to what these people had to say.
It must be difficult to hear, as we have on this thread, that NI has a really low cost of living, lovely and very affordable housing, the best schools in the whole of the UK, best-educated kids with access to high-paying jobs in ROI if they want them etc. etc. etc. and see that the most amount of money from the UK per head is being sent to NI... and thinking, fucking hell, we don't have any of that.