Let's face it English were f***ing horrible to the irish and we deserved a fight. We didn't deserve a sustained terrorist attack on our women and children but you cannot undestimate a people who have been the subject of tyranny no-matter how many generations pass.
You have to understand why the English state went into Ireland first over 1000 years ago. And it was not for 'onionisum', but as a mean to control the ports and stop piracy.