It is not nonsense - it's a reality.
You may dislike the fact that there is a place called Northern Ireland, but there is, and it forms part of the United Kingdom.
I fully accept that there are people in Northern Ireland who identify solely as Irish and desire to see Northern Ireland cease to be part of the United Kingdom, and to form part of a 32 County, Ireland.
That's all sorted.
The GFA upholds the right of anyone in Northern Ireland to identify as Irish and/or British.
The constitutional position will change if and when the majority of people in Northern Ireland see fit for change.
That's the deal that I, and the vast majority of nationalists/republicans, have endorsed.
However, that in itself will not "unite" Irish people from differing backgrounds.
What good a territory united, if it's people remain divided?
Not for me to suggest how to bring about a "united" people - but I would suggest that respecting their differing identities might be a useful starting point. It sure beats trying to bomb an identity out of existance.
I have long stated that their will be no "victories" for one side over the other on this island.
Either we all win together, or we continue to be divided forever.