I say, all your whiny eurofags need to just be silent and be glad that glorious Americaland hasn't nuked the ever loving hell out of you.
And that we saved your collective asses in Dubya Dubya Two from the menacing Hitler and that one silly Asian guy. Heh heh. Asians.
Anyways, I think you need to learn WHY it's okay for us Americans to insult you, so he's a history lesson.
You see, back during 1 AD, Christ began to walk across the Pacific (The Devil gave him the wrong directions, you see) to get to the Americas. This is where he was between the ages of 18 and 37. He was founding the godly nation of the USA. There was no one there but the Aryan United Statedians and Mexico to provide labor. And Jesus looked upon this and said "It is good". Then he made for them NASCAR to amuse themselves while they waited for either the second coming or for you Eurofags to come try and despoil our holy land. Oh, and he made mafias for those Godless Yankees.
However, in the year 1000 AD the so called Native Americans came. They spread their disease of Heathenism to the then-immortal Americans. They were very sick with it and rather than become heathens, as the disease makes you one, they committed mass suicide after sending some of their children, whom had been formed from holy asexual reproduction, across the sea to what was then termed as "Eurofag Land."
These holy offspring of America then went about inventing everything the medieval Europeans used. Even the monarchy and the revolution. And the Papacy. Thus all of European tradition and culture is really derivative of American culture, since initially all there had been in "Eurofag Land" was dirt farming. The Americans then renamed it to Europe. They considered helping Asia and Africa, but since neither had souls they decided to leave them to the wilds. They were truly a kind hearted people.
However, they ached to return to their homelands. Lief Erikson? He was really an American. An American viking. He just wound up in what we now know as Canada. Before the great exodus of America, it wasn't Canada. But the Native Americans had screwed it all up so it was named Canada since it was unworthy of the name United States and Lief Erikson, in his mighty vikingness, renamed the land to Canada. However, in the 1600s as we all know the Americans finally recolonized their holy land, which had been taken from them by the vile 'Native' Americans. That they live is a testament to our good will and grace as given to us by our Lord Jesus W. Christ. We even saved some of then Injuns from the Canandanins (Their name for themselves at the time). Bunch of unholy bastards they were. Now they're just communists. Godless communists with their drugs and universal health care and snow. Godless snow.
And that's why Americans can insult you and you can't insult us, we're God's chosen peoples formed asexually by Jesus-budding.