I gave up on Maseca long time ago (I blame tortillas for the slightly "behind" independance of the women in my country), however... today, for the first time in the year we had a Mexican dinner and was YUMMY!
Anyways back to the racism thing and all, and please don't get offended but this is my personal opinion, I find the term "hispanic" misplaced, first of all apart of speaking Spanish, we very seldomly have a "Spanish Connection" recent enough to be represented in our appearance, and second, because Spanish are mediterraneans not a race on its own right.
I would hate DS to grow up having his race as his main pride in life (the same way I hate seeing people who think they have to have special privileges just because they are white), I would like him to value himself for what he has done with his life rather than the appearance he was born with. Obviously, this may sound well in theory but dealing with bullying is quite a different animal.
At the moment, being a little boy, I had been able to manage to place him in an environment where they accept his differences or at least are politically correct to shut their mouths off. But for the future I would like him to be very aware that the 3 cultures residing in him are equally valuable.
And in answer to the OP, yest, racism in bullying is worse by far because is not something that is in your hands to change. And when it happens you know that you are at a road end, simply because whatever you can say in your favour it's not likely to be understood/apreciated/recognised by the agressor.