1) The word "white" appeared in a sequence of insults toward the end of the article. It's hard to deny that, while this kind of talk might be broadly accepted, it's still basically racism. Fundamentally, the ethnicity of the officers is irrelevant. The account of what happened didn't even mention the officers calling out the author's race.
2) It's understandable that a person would feel extremely angry after an experience like this. Even so, it seems the author hasn't let much of his anger die down since the time of the event. The tone of the article is not only angry, but quite frankly, a bit juvenile e.g. the talk about hiring a "badass" lawyer.
Either way, I don't feel like much good will come as a result of this incident. I'd feel differently if Mr. Afshar spent his time calmly talking about how he took the officers to court, what kinds of evidence he cited against them, and how others could do the same.