1. While I agree the cartoon is flawed in portraying the Martin and Zimmerman camps as being equally bad (I found the Zimmerman camp to be worse, if only because it seemed to attract so many wingnuts), it nevertheless calls for dialogue and understanding, which I find to be admirable. Furthermore, we don't know exactly what happened. If you want my perspective, I think Zimmerman was the one at fault, because of his violent track record.
2. It's not 1965 anymore. While we're not at the mountaintop yet, African-Americans have made incredible strides. Just twenty years ago, the idea of a black president was almost inconceivable. Institutionalized racism still exists, there's no doubt about that, but things have changed for the better, and I think they'll continue to do so.
3. In my humble opinion, Affirmative Action is worthy of criticism. But I don't think so because of misapplied quotes. Rather, I think the degree to which race-based Affirmative Action (at least for African-Americans) is still necessary ought to be examined. Nothing is above being questioned or criticized.