From the OP:
Also, at some point after this conversation took place, one of the women looked at my prized necklace and said “Hey, that looks like a calculator, is that a calculator?”
I said “um no, it’s a necklace, it’s African, from Nairobi.”
And she replies “Oh, huh…..well, it looks like a calculator.”
Dumbwhite------
If this is an accurate recollection, the author is a seriously disturbed person who should not be in this or any other workplace. If this is not an accurate recollection... I'm not sure the conclusion is any different.
Certainly there are workplace shootings where the perpetrator appears to have a very similar attitude - the Omar Thornton case, for instance:
http://en.wikipedia.org/wiki/Hartford_Distributors_shooting
Kixeye is obviously a company with a corporate culture in which people vigorously insult each other in a typical young male style. A similar institution is the US military - at least at the enlisted level. Race relations in the military are and always have been excellent, so perhaps the hypothesis that coarse humor is the cause of racial hostility could use a little more exploring.
I wouldn't want to work at a company like Kixeye, though. It's obviously an even worse fit for the OP. And that's not even to mention that this kind of office culture is actually illegal in our great nation, land of the free and home of the brave. This is irresponsible toward the investors, at least...