Re: "the country has an advantageous business and digital tax environment"
I know. Even now. That is why the 'huge problem' isnt really as big as its made out to be. Not the reason I voted leave but I did hope that a deal could be arranged between the two sides to keep the two sides easily trading legally and efficiently. The entirety of Ireland would benefit then.
It requires that both Ireland and NI are in the EU, or if not then at the very least in the single market and customs union.
For the same reason both the UK and the Ireland entered the EFTA at the same time in 1960 and they both moved to the EU at the same time in 1973.
It is not a) easy thing to handwave away and b) over 90% of the population of Ireland want to play a full part in the EU. As much as some Leavers think it would be easy if Ireland just did what it was told, it's not going to, it's its own country and there's no particular need for it to make compromises to placate another country's folly. That would be an attack on its sovereignty and all that.