Well, I consider Europe to be the greatest continent.
The USA, unfortunately, was founded by relious fundamentalists...and that will always cause huge problems. For example, the USA has never had Atheist politician of any stature.
Although, talking of culture, I must admit, the US's gun culture is way ahead of Europe.
The Iroquois Nation was not religious fundamentalist. Ben Franklin neither. Washington nope.
And Europe is the 6th largest continent.
Bring some meat to the dogfight