Delmonico,
I am not Catholic; interestingly enough, I go to a Presbyterian (read Scottish) church and attend regularly (except when they have their 'Scotish Day' and dance on swords and eat cross buns and talk about how downtrodden they were by the British).
But my relatives go back to Catholic Ireland .... and I was told that my matriarchal name, O'Cosgrave, was deeply involved in the Death Squad of the Sinn Fein ... and my grandfather refused to discuss 1) Why he left Ireland and came to Texas, 2.) How he left Ireland and came to America, or 3.) Where he was born or the date of his birth.
That was three generations ago, and I am a born citizen of these United States, and can only claim a 'shirt tail' relation to the country of Ireland.
So I blame it on Good Queen Bess and Lord North .... and, much like the Scottish, if we (the Irish) had fought as one and let the petty squabbles go, Ireland would all be one country ....