OK, let's take the n-word out of the equation. Still, regardless of your culture, the homosexual slur isn't generally something high-profile people can say with a camera in front of their face and not have a negative outcry.
No matter your point of view, this video was done in very poor taste.
No one's mad that a black man rapped. People are upset that a Dallas Cowboy dropped all kinds of words that are generally considered bad -- and did so while wearing a damn autographed Cowboys helmet, no less.
Also, for the poster that referenced the ridiculous Barbie Carpenter video -- yeah, he just looked like a darn fool doing that. But had he cussed up a storm, talked about Jerry Jones' money, and rhymed Romo with the homosexual slur, the reaction would have been much different.