Wow, I've given myslef a headache! In further searching, it seems (to me anyway) that there is as much, if not more, "hatred" between Republicans and Unionists in the US as there is in Ulster.

The only agreement seems to be that the Ulstermen (protestants anyway) are not Irish.

I actually did a short tour of duty in NI when I was in the RAF. Unfortunately, considering the circumstances, we were not allowed to venture out into the community.