As for the re-unification issue, that is not going to happen without a great deal of discussion, and compromise from all parties (similar to how the GFA was negotiated).
I am from a moderate Irish nationalist background i.e no truck with the violent antics of the IRA, sympathetic to the fears and siege mentality of Unionist, but grateful to those who fought and died for Irish independence.
I changed my views on Northern Ireland since having work contracts there.
It seems to me that Northern Irish nationalists feel somewhat bitter toward the Republic.
There's a sense that they felt abandoned when running from the Troubles.
I deeply admire former Taoiseach, Jack Lynch's words about the potential for re-unification:
‘Amity, not enmity, is our ideal; persuasion, not persecution, must be our method; and integration, not imposition, must be our ultimate achievement’.
He said that ‘all Irish traditions are intertwined; let us all cherish them all’. He committed himself to the peaceful unification of Ireland: ‘In this there is a motive—so I will state that too. It is that in this island there shall never again be fear, turning to hatred, turning to bloodshed.’ Lynch also committed the country to Anglo-Irish friendship, expressing regret for the injuries suffered to British soldiers during their tours of duty in Northern Ireland—a situation ‘which must seem to them inexplicable’. Lynch said that it was for political leaders to govern wisely and justly, and it was ‘not a job for soldiers’.
That gentleman is dead, but his words are as relevant now as they were then.