Wow, look at the controversy I started.
Anyway, I just wanted to pose the idea that the Kahnzumers may in fact be a class rather than a species, because that's what struck me the first time I heard about them. It was said that they are the most important creature on Oddworld, it was almost as if they were saying, "And they might be right under your noses...." Because in the end, Oddworld isn't a story about good vs. evil, even those who are supposedly good can be guilty of crimes they don't understand, so I thought perhaps we were closer to them than we realized.
Of course I only know as much as anyone else outside OWI, so I'm not claiming to belive it one way or the other. Just a theory.