Given that all sides appear to be nicely committed to a frictionless border, even if the EU will face some problems with its existing treaties, what of the other effects?
For instance will Ireland join the rest of the EU in forming an army?
With their fishing rights in our waters entirely revoked and the Spanish fleets agitating for increased quotas in the Irish waters how will this affect the rural parts of Ireland?
Lidl and Aldi are both based in Ireland but will no longer be able to source their goods and especially their agricultural produce without paying huge tariffs..
Apple too is based in Ireland but will face large tariffs to access the UK market.
Worst of all I imagine Amazon is also based in Ireland but surely wouldn't be able to compete on price. Gawd knows how many billions worth of trade this amounts to alone.
Also what of the preferential corporation tax in Ireland that the EU wants to 'harmonise' which would mean doubling it. Under the qualified majority voting how long can the Irish alone hold out?
What, to counterbalance all this, are the positives?