Ireland were the political and economic outcast of Europe after deciding not to join the allies in WW2. The repercussions were felt for years. It still tarnishes Ireland's reputation, and Ireland will always bow down, cap in hand to the evil global administrations, and do whatever they say because of it. Ireland had to lick Europe's arsehole and enter the EEC in the 70s (after being turned down).
Ireland, and all countries want, and need to join the EU otherwise they'll be outcasts and the country will be fucked (moreso than it is already). In an ideal world most people would say "feck Europe", but it's not that simple.