First of all, did you even read the post? A racist does not require them being self aware of the fact. Surprisingly they often aren't.
Yes, I did read the post. It seemed like you likely had a worldview where most people who didn't vote Obama were in some way, to some degree racist. And it also seemed reasonable to assume you probably had the same assumption about most people supporting Zimmerman.
I thought you might find it interesting that someone (me) who strongly supports Zimmerman, and who even talks about riots or the threat of riots in relation to this case (gasp!) voted for Obama. I also fully expected you to say you didn't find it surprising, and to not skip a beat. I still felt it was worthwhile to remind you things can be more complex than you may lapse back into assuming they are, when you haven't been reminded in a while.
Secondly, why do you think it was directed at you?
I didn't think it was directed at me, I thought it was something I felt like replying to.
And finally, why does your response remind me of the classic "I'm not racist I have a black friend!".
Probably because it sounds like you're someone who, for whatever reason, has taken up the hobby of trying to diagnose people you disagree with as being racists, and it also sounds like you've built a pretty fool-proof, evidence-immune construct where you can deem someone to be racist, and they can still be racist even if they do things you'd never expect a racist to do (like have black friends, mentor black kids, start a business with a black partner, vote for Obama as GZ did, etc etc) AND even if they don't realize it.
Sounds pretty airtight. Sounds like you've enabled yourself to view others as racists, and shielded yourself against just about any evidence that might come along to the contrary. You've got your response already prepared and in the can
"oh he just doesn't KNOW he's a racist" "oh that's exactly what you'd expect a racist to say!"
Well I have my own little theory and I'd like you to try it on for size...
I think that some of the most racist people are those who fancy themselves to be the least racist. I think a lot of the policies that many progressives implement and support (like affirmative action) or even the apologetics about it being okay and understandable for a young black man to assault someone just for keeping an eye on them... reveal their own attitudes about what sort of behavior they expect from a certain demographic, and what sort of standard they hold that demographic to as compared to their own (usually lilly white) demographic as being quite distinct... and again, quite racist.
How's that for Racist-Inception?
Btw I'm not saying I think you are such a person, just food for thought. Though frankly? I think this thread would be better served by all participants agreeing to stop discussing whether anyone, or anyone's arguments are "racist" - as you yourself proved in the post I'm quoting, it's just too tricky to successfully sniff a racist out!