Christian Dem in NC has a diary already up about the basic situation in Miami. Since that is already a lengthy, on-going discussion, I wanted to point to something more recent.
Cris Carter recently appeared on ESPN claiming that Dolphins players don't see Incognito as racist. Miami Herald columnist Armando Salguero followed that up by contacting Dolphins players.
Well, I've spoken to multiple people today about this and the explanation from all of them is that in the Dolphins locker room, Richie Incognito was considered a black guy. He was accepted by the black players. He was an honorary black man.
And Jonathan Martin, who is bi-racial, was not. Indeed, Martin was considered less black than Incognito. Non-white teammates such as Brent Grimes and Michael Egnew are on record as saying explicitly that Incognito isn't a racist.
"Richie is honarary," one player who left the Dolphins this offseason told me today. "I don't expect you to understand because you're not black. But being a black guy, being a brother is more than just about skin color. It's about how you carry yourself. How you play. Where you come from. What you've experienced. A lot of things."
Salguero writes that Martin had a problem being accepted, especially by black players, because he was considered soft and because he was the highly educated (he went to Stanford) son of highly educated people (his parents are Harvard-educated lawyers).
I'm not white, but I'm not black either, so I'm not going to jump in with a diary professing to understand everything and explain it, but I'll give a platform in the comments for anyone who wants to take a stab at it.