It's hard to see how it could be anything else. The only way out is for a trade agreement at identical tariffs, which seems unlikely.
Well, quite - but the mind boggles as to why not... it has been portrayed as if making trade between the UK and EU easy after Brexit is like us 'having our cake and eat it'.... but in reality it is pure common sense that a) could prevent a civil war from erupting in Ireland, b) save the Irish economy from ruin, c) save the UK economy from severe harm, d) stop the UK from breaking up entirely and e) prevent hastening the collapse of the EU. But apparently it is more important that the UK don't get tariff-free trade because we are being naughty boys and not playing along with the great European project.
@eran0004 While the Good Friday Agreement does not literally guarantee no hard border in Ireland, it is still by far the most significant bilateral agreement in UK-Irish history and as such carries enormous weight. If not for the GFA, Brexit would have been resolved about 2 years ago and a border erected already.
To be fair to all sides in this situation, the only common factor in the entire mess is that no-one wants a hard border in Ireland - that being the case, I cannot see how it is possible for one to re-emerge, especially in light of the GFA which virtually guarantees that a solution that does not involve checks at the border must be pursued
at all costs. But, the EU and the UK differ on whose unbreakable red lines must be broken for that to happen - for the EU it is the sanctity of the Single Market, but for the UK it is the continuity of the union which is at stake.
I would suggest that the UK's solution - however unrealistic it may appear at this moment in time - is the only long term solution because it is the only one that is physically possible without starting a war. Whether the EU like it or not, Northern Ireland is a part of the UK and, once we have left the EU, the EU have no legal rights when it comes to how NI is governed. The EU's proposed solution - to keep NI in the EU while the rest of the UK leaves - risks Ireland returning to a state of war, and though it might be 'workable' in their estimation, I would (seriously) beg to differ - it is not only unworkable, but extremely dangerous. At least the UK's solution can become workable, even if it isn't right now.