Not inappropriate at, in fact its a question all residents of this Island have asked and as yet theres no clear answer.Its a very complicated and complex question and depending on which section of our community you live, there's a possibility of recieving thousands of different answers, but I'll give it ago anyway.
Our situation here has been brought on by years of conflict between two main religions,Catholic and protestant, in the 1920's Home rule was offered to the whole of Ireland in which 32 counties consisted,26 of them where prodominately Catholic and the remaining 6 where prodominately Protestant, the 6 voted to stay part of England,and so this was carried out, since then the History of our land took a nasty turn, Catholics started to rebel against this rule, and the rest is trouble, since then the two religions have battled for power but now the Catholics have majority and the protestants are minority, and the battle has been fierce, both Catholics and Protestants now hold their religion close to their heart and wont let go. If your a Catholic in a Protestant area theirs a chance of serious damage being Inflicted on you just because of your religion, and vice versa, Which in turn causes more and more hatred between the both parties, so yes it is religious hatred and a need to belong to a certain domain.
There are hundreds of books and even movies made concerning both parties, but getting one that is protraying an even tone between the two is (I hate to admit) impossible, some one will be affended, and a real life interpretation is always wrong according to the Victor, because the deeds carried out to become victorious are nasty and frowned on by the rest of the world, I'm not an expert by no means and I'm sure no one could be. The circumstances and the History alone are so complex that their will always be strife in Nr.Ireland because of foreign Rule.
Don't know if that helped you any Thomas,and if you have any more questions,just post them and I'l try to keep my replys short, haha
Debs.