1.The Republic has become more "European" (e.g with the changeover to kilometres and the introduction of the Euro).
2.The Republic has adapted much better to the global economy, as evidenced by (until recently) stellar economic performance and the increasing immigration required to sustain that growth.
3.Lack of media interest in Northern Ireland (although that’s probably a chicken and egg scenario-isn’t the ROI’s media increasingly apathetic towards NI simply because of the lack of interest on the part of their readers about what’s going on north of the border?)
4.The "disappointing" (from an Irish nationalist’s point of view) performance of "north-south" bodies.
Further to Point Three, I suppose a further confirmation of that detachment from Northern Ireland is the failure of the only "all-Ireland" party to make any kind of meaningful headway in the ROI; the truth being that the electorate in the ROI were more concerned with Sinn Fein’s economic (non)policies rather than their core "Bash the Brits" rhetoric.
And someone should really have let Sinn Féin's Dáil Leader, Caoimhghin O'Caolain in on this secret when he recently gushed:
"We have clearly to accept the logic that a single island economy that would be to the benefit of all people on the island of Ireland can only best be served through one single administration on the island of Ireland that cherishes all its children equally."
No, we don’t have to accept your "logic," basically because you have never supplied any detailed plans whatsoever to back it up that "logic".
Unlike Garret Fitzgerald who stated in the event of "Irish Unity":
"Northern Ireland would be 20% worse off which means that even the most ardent Sinn Féin supporter vote against it or, alternatively, we'd have to increase our burden of taxation by a quarter, which isn't going to happen."
"20% worse off" or 25% extra tax, sounds great, where we do we sign up?