What St Patrick's Day Means to Me

I have absolutely no idea why we celebrate St. Patrick's day in the states. In European countries they celebrate to remember when st Patrick forced all of the snakes to flee the land. So why does the United States even celebrate the day? Maybe we just wanted to fit in. Now it is just an excuse to have a party and parades. St. Patrick's day has got to be the most pointless holiday there is to Americans.