With so many different people from so many backgrounds Americans need something to rally around. That is the constitution and the flag. So perhaps that is why patriotism is so big here as that it may be vital to our very unity.(Original post by penguin05)
America was originally the land of the Native American Indians but the Europeans decided to colonize America in the hopes of creating their very own ideal nation. The very diverse group of people who will then form the population of USA harbour hopes of living the life they have always wanted in the 'Land of Opportunity'. The patriotism stems from the unity amongst its people wanting to create a whole new culture and identity for themselves.
It may be interesting to see how the UK unity holds up when wave after wave of immigrants, who have no claim to or sense of this history, continue to come to your country.
How are you celebrating?