I think you meant 'idiot' when you wrote 'America'. Why is it that whenever someone from the UK talks about America they assume that every fucking person here is exactly the same? I suppose that you spend most of your time drinking, can't go without a potato in every meal and flip the fuck out rather easily? Cause you know, everyone in Ireland is like that.
On that note, you don't even know where the person who made this picture lives or what they are like.
Well then I would advise you to grow a pair post haste. I was merely playing upon the stereotype of americans not understanding irony to get a cheap laugh. I suppose you're simplistic american sense of humour (with a u) wasn't up to the task of detecting that.