Bleach is a racist show. They make the only mexican/black character big and dumb, and then make him lose every fight.
The shield arms implies that he's only good with his hands, because racists think minorities are only good for menial labor. Also, when he invokes his arm weapons, his shirts tear into sleeveless wife-beater type shirts.
I bet the first person Chad will win a fight against would be a female character, and he'll probably win by punching her in the face and giving her a black eye.