The Irish did it to themselves, dropping their religion and adopting atheism and left-wing causes.
Do some research on the subject of national referenda connected to the EU and you'll find Ireland prominently mentioned.And then research what happened after Irish voters tossed a monkey wrench in the EU's gears.
Then you'll see that the Irish,at the very least,had "help" in destroying their country and culture.
That help being courtesy of Brussels (meaning,in reality,courtesy of Berlin).