You Yanks are usually on the side of the under dog.
The Yanks I have met have good manners and Pride in their country and traditions.
Those of a aggresive nature tend not to be from those countries who cherish democracy and freedom of speech. 
Good manners are cheap. 
Benny Hill is our bnch mark of integrety by the way 
Because we used to BE the underdog (before we whipped the arse of those oppressing us, that is)
Most do, this is why I choose to not be like everyone else
Don't kid yourself. The aggression of most yanks lies just far enough under the surface that it is not readily seen.
Always have, always will be.
Benny hill makes up for the fact that you eat a dessert called Spotted Dick

Now... Where is my pie?!?!??!?!?
