"There is also an element of race that needs to be discussed. My feeling on this—and it's backed up by several interviews with Seahawks players—is that some of the black players think Wilson isn't black enough."

http://bleacherreport.com/articles/2238790-mike-freemans-10-point-stance-another-wr-learns-not-to-disrespect-the-qb

It's not based on "feelings." Mike Freeman interviewed Seahawk players who corroborated the view of Wilson by some players. And just for the record, Freeman is a former sports columnist for CBS Sports and has been a sportswriter for the New York Times, Boston Globe and Washington Post. I have no idea if he's accurately reporting what the dynamics are in the Seahawks locker room, but it's not based just on his feelings.