No, but people would probably respect you for returning and not give you too much shit, especially if you learn the history and the customs and adapt. Now if you were able to become a citizen (if I recall, great grandparent wouldn't make the cut off) then you'd probably get some interested looks, but I think most people would accept you as being Irish, because you're an Irish citizen. It's why typically speaking if someone were to immigrate over Ireland, such as a refugee for example, many people wouldn't consider them Irish, but if they had kids on the Island, then they would consider those kids Irish. Especially if they are raised there. Don't get me wrong, people are happy to celebrate heritage and such, and talk about different things, but it's sort of a weird thing. We're not that far removed from our Independence, my great grandfather was conscripted to fight in WWI for the British Army, and refused and instead decided to remain home and fight for Irish independence, and after that the Irish Civil War, the troubles ended when I was living there, I had older cousins dipping across the boarder to carry out operations, uncles who fought during the boarder campaign, my father did a few raids of his own in his youth. Although I was too young to really remember much of that, as the ceasefire began when I was only 6, there are people who are very protective over Irish identity because it's still pretty recent. It's why I get so much crap when I go home for moving to the states, and I'll continue to get crap until I move back. Just how it is for some people. Most Americans trace their lineage to an Ireland that technically doesn't exist anymore, or worse to Northern Occupied Ireland, which cause some Irishmen to believe that they shouldn't even claim Irish heritage but rather British. I don't split hairs that much though.
