That video obviously WAS directly meant to be insulting. Throwing the "PC" cliche around simply means the Bushes persuaded you to pawn your brain.

Seems like Native Americans are the US's equivalent of Gypsies in Europe - the minority that anybody can demean as much as they want in the knowledge that nobody in authority is ever going to call them to account for it. How long do you think that video would have stayed up if it ridiculed Black American culture to the same extent?

I encountered that instrument as a kid in New Zealand - it was called a shepherd's whistle, and was (probably still is) used by shepherds to call to their dogs across large fields. I never managed to make it work.