You and the media. I don't see why everyone is so hyper about this. No one got repulsed by groups divided by sex or age and this is no different. It's just a publicity stunt - nothing more, nothing less. But you're right, in order to win you have to be able to get along with everyone or lie very well.
In a totally un-PC scenario, I'd love to see:
Latino team - turning their canoe into a low-rider, having long siestas, and rolling seaweed smokes.
Black team - breaking into gangs, freakin' over the water challenges, and rolling seaweed smokes.
Asian team - calculating morning, noon, and night on the odds of boots and puzzle strategies, and rolling seaweed smokes.
White team - burning crosses as their fire, fretting over their coconut blackberries, and rolling seaweed smokes.