Well as a white person with obvious European roots (mom was born in Germany as well as my brother) I do find that white people dance in very orderly and cooperative ways. They all have the repetitive actions over and over in many European styles. Let's take the polka for example:
While not linear these "other white" people still do the stereotypical dance.
And of course the Germans have the most violent, the slap dance. Gotta love those Germs...
And the French as well, look familiar? Fast Forward to minute 4:00
And well I won't embarrass the English with their dances. But let us go deeper, do only white people do strange stereotypical dances, well of course not.
So let us not forget Japanese traditional dance, once again all doing the same move at the same time.
So it's just not white people.
Let's take africans, A lot less coordinated but well they are africans... they can't even afford to have capital letters. 
So the point is why are we programmed around the world to dance in unison? I do understand the need for the "Ancient Dance." It's a mating ritual, sorta like the game SPORE.
Let us look deeper. Not only do we dance but we also loosen ourselves up. We drink alcohol. Anyone who says "I can't dance" figures out pretty soon a glass of vodka and you'll be dancing. Once you start dancing you begin to dance and make eyes with a mate. So now you've drank God's gift to humanity, danced the ancient dance there really is only one more thing left to do. Procreate!
These are not facts, just a simple mans observation of his short lifetime on this planet. You drink, you dance, and finally have sex. It doesn't matter what your sexual orientation is, it's still works the same way.
But of course there are always flaws in there with every step.
Let's take alcohol the first step in the mating process:
While it's called the drunk dance, this is not actually dancing. It doesn't lead to step two which is actually dancing while drunk. But there is the grey area, dancing while drunk, which rarely ever leads to step three; sex. Take this lad for example, is he dancing or running in place?
And then step three, drunk sex. Which sounded like a plan, you both get drunk and dance, than just when you think it's gonna happen your head starts spinning and it sounds like all these YouTube videos playing at once.
Just remember, even your grandparents (if they are alive) still dance together when no one is around while listening to Julio Iglesias or Frank Sinatra.
Just for fun, let us not forget the wonderful advancement in the skills of dancing contributed by no other than the USA. It's called country line dancing.
