I think it's already so difficult to pass on Parliament, and similarly so divisive in the general population that this IS a major blocker.
Both the leavers and the remainers in NI appear unhappy with this deal. My general assertion is that there is no position that will be acceptable to the EU and to the NI population (including re-unification of the RoI).
Who would have thought splitting a country 100 years ago would prove so divisive?
(Said with tongue in cheek)
I do have some curiosity what happens in 2 years, on the anniversary of the separation actually.
The issue goes even deeper, actually.
It's not just the risk of what will happen on the island of Ireland.
It's also the US that has already publicly stated that any breach of the good friday agreements will automatically result in NO trade deal with the US.
Brexiteers boast about how they don't need the EU, because they're going to make a "great deal" with Trump's US. I guess they really like chlorine chickens.
Then there's also Johnson who claims that the NHS will "never" be on the table in any trade deal. I guess he doesn't realise that his negotiating partner will be Trumpy. Opening up the public health market for american companies, will literally be his first criteria. It will be the ante of the negotiations. No access to the health care market and there will be no trade deal.
So even IF they somehow manage to comply to good friday, all they will accomplish is being a puppet for Trump. They leave the EU "to take back control", only to end up handing over even MORE control to the US. The UK will effectively become the 51st virtual state.
But aside from that.... I don't even see it being possible to make a deal with the US. Because of - again - the good friday agreement.
It's really simple, actually...
In order for the UK to be ABLE to make their own trade deal with the US, the UK MUST leave the customs union and single market. This, because the EU doesn't want any chlorine chickens on their territory.
But leaving that custom union and single market, inevitably means a border in ireland, which means no US trade deal because it blows up good friday.
A northern ireland only backstop, would effectively break up the UK in the sense that the US trade deal won't count for NI - at least not in terms of import.
It's all a very strange situation and I am absolutely BAFFLED that guys like Johnson supposedly don't realise this. I don't buy that for a second, honestly. I think they realise it all very well. It's near impossible that they don't. But then I can only wonder.... why do they press ahead, knowing it will lead to such impasses?