I don't think all Nationalists support the IRA at all. In fact I know they do not. Some years ago, when a group of "hard men" were frequenting the "Tinnef" in Cologne, they were shunned by the Irish community here, who were essentially Nationalists to a man (and woman).
I am a little baffled as to where you think I have lost the plot completely Peter. In the first sentence sentence of my previous post, I tried to make it clear that I was trying not to be judgemental. I am aware that the sectarianism is so deeply embedded in the culture of many people, that finding solutions was always going to be difficult. As long as those aims were pursued through violence, it was nigh on impossible. Removing violence in itself will not solve all the problems, but it will make it considerably less difficult to pursue solutions. As regards your final sentence, I couldn't agree more.