I actually have always agreed with your outlier opinion, but you need both countries to be in the EU to make it work (shrug).
You are not counting the appropriate people in your study. A pretty large majority of people in the Republic would like to see the North become part of their country.
However, our opinion is less important than the opinions of the people living in Northern Ireland, and in that part of the island, there is not a strong majority for re-unification.
Like my original point is what the Good Friday/Belfast agreement states, so I'm not sure why you're disagreeing with me.