Look: if I was black, I would probably be angry about Trayvon Martin, too. It would bring up all that ancestral memory of days when a black man could be killed out of hand for nothing.
However, I’m not black. So I’m free to say that this kind of thing:

…is a bunch of racist crap. Because jumping to the conclusion that The Other has attacked us, without waiting for independently verifiable facts, at the behest of our official “race leaders,” sets alight lovely pyres of hate no matter what your melanin level.
It’s just how we crackers think sometimes.
Couldn’t agree with you more….