Noodle, your're not the only one proud of a British heritage - me too. I still have a pin from my first St. George's Day in 1956! But if we are getting very specific, then I place the the Brit with a little less honor than Scot and Manx.
We won't discuss the French part. The little bit of Irish refuses to celebrate St. Patrick's Day given what he did to the non-Catholics - I would rather have the snakes.
But I was born in the U.S. and I am proud of my country, though like every nation ever founded it has its serious flaws.
With very few exceptions, the nations that survive today have something to be proud of, even if it isn't much at the moment. So focus on that and just don't force others to agree if they don't understand.