Long story short, the mainstream republican terrorist movement always splits and the retardedness carries on in some capacity. The average person in the street does not give a flying fcuk what religion someone is believe it or not, it's just that sh1te rises to the top here as it does in Glasgow, Liverpool, London... Add some properly fcuked up history and, well, what do you expect?
The Republic doesn't want us and anyone with half a brain knows it wouldn't work financially never mind anything else. You don't just wake up one morning and pretend that you weren't born a British citizen in part of the UK. There's around a million people who just aren't going to do that
Regarding the story, who's to blame but the British government and it's reps for allowing such nonsense when they had complete control?