Speaking as one of the millions of people across the world who has Irish heratige i'm...kinda apathetic about St Patricks day. It was once a celebration for Americans with Irish-heratige, then Americans in general, and then the the rest of the English speaking world. St Patricks day in a sense is not really Irish, in the same way that Christmas is not, in a sense, Christian.
Green, lepracauns and 4 leaf clovers is to Ireland what posh Victorian gentlemen are to England, and is riding a bicycle drinking wine and selling garlic is to France, and what Leiderhosen is to the Germans. They are all comedic sterotypes which grip popular imagination. In reality, they have little to do with the actual country they are supposed to represent. If you really want to pay tribute to these countries such as Ireland, start taking them seriously.
As a side note, i've never celebrated St Patricks day before, its something we never did were i come from. I could have gone to a St Patricks party last night but declined, i was not really in the party mood. Besides, i feel i've honoured my Irish heratige when i actually visited the country two years ago, and look forward to going again.