I don't understand why you are asking for my suggestions as to what the options on UK government might be.
Genuinely, don't understand but am interested why you ask?
Is it that you accept that the UK might take responsibility for the errors in the past- not as a stick with which to beat you in arguments, but only to help avoid them in the future?
People of ALL political persuasion, throughout the UK - including in Scotland and NI - voted to leave the EU.
From where I stand, it doesn't seem to me that it was a truly informed decision.
the self-determination arguments are about bringing government closer to the people for accountability
I agree that many elements of the EU are unwieldy, and cloudy.
Finding it ironic that the UK stands on the point of self-determination, is not ironic at all.
Coming from a country that tried for centuries to "brexit" itself, to assert it's right to self-determination of it's own nationhood. Which, having had it's parliament not only hobbled, but removed and centralised in Westminster, yes, I find it ironic that Britian now uses the same language to remove itself from the EU. An institution that was (and still tries) to balance the powers across Europe so that we don't end up in 1939 again.
Ironic is absolutely appropriate.
UK and other governments have complained about this for many years. And, yes, Brexit may give impetus for this to happen. Hurrah, now please, stand with us. A strong, Britain-inclusive EU is essential to counter-balance the threats of a right-wing resurgence, Russia, China etc.
And it is simply untrue to say that the UK stands alone trying to reform from within without support from, yes, your allies and friends.
Is that really the biggest issue "the Irish" have with the Brexit vote? Is it not simply more about Ireland's self-interest?
Yes, it totally in my self-interest that peace remains stable on this island, and I apologise to no-one for saying so.
That hard-negotiated peace should be sacrosanct- and it is untrue to say that it not at risk.