Not really. In Athens, it was about stopping a minor level government tyrant and his goons before it got out of hand. It wasn't about white and black there, it was about political hooliganism.
In LA, it was about one minority subset protecting self, friends, family and livelihood from another minority subset hell bent on violent criminal acts. And, like Gunner said, there were many in Ferguson and Baltimore that took up arms to protect themselves and their neighborhoods from a criminal element of their own minority type. Anyone is capable of being an honest, law abiding, hard working, productive and good standing citizen, no matter the color of the outer covering.
Really, these days the people who cry racism are themselves the most racist. They had, for so long, gotten the favors and advantages from being "oppressed victims" that they are loath to loose them. Obama, Jackson, Sharpton, etc. They seek to make victimhood into a worthy goal, and for the most part, it's working.