That said -- "malicious" might not have been the best word for him to use. Even though one is offended by (otherwise sees harm in) the actions of others, one shouldn't always presume malice. You do have a point there.
But otherwise -- and more importantly -- look, you need to realize that, basically the ALM movement is pretty darn insensitive and clueless. The main reason people take offense at the ALM slogan is that it seems belittling of the (very serious, and more to the point, seriously unequal) threats to their physical safety that blacks (and other minority groups) have to deal with on a daily basis.
As the other poster so eloquently put it -- yes, some people do have more right to complain. It's just the way the world is, at present. If you don't like this state of affairs... either (1) try to do something about the underlying phenomena which causes these people to complain more in the first place, or (2) at least lift your head up, and recognize that however imperfectly stated, their complaints are not about you, and as such, in no way meant to be something you should get offended about.
So in sum, yes, the ALM slogan isn't necessarily malicious, per se. But it is clueless and juvenile.