Thanks for your sisyphean efforts in explaining to this unsympathetic audience why sexing up your bug report with racist caricatures is simply not cool, jessedhillon.
1) race is a significant biological fact, whereas most sociologists agree that it is entirely a political fact
2) racism only exists where people specifically intend to be racist, i.e. that it is entirely a manifestation of individual belief, and
3) that racism is a natural and unavoidable result of the human condition.
You can see the manifestations of this theory on this thread, especially points 2 and 3. Consider the responses here to the effect that because there was a greater point about certificate authorities being made (and thus no specific racist intent exists) no racism is present.
And also consider the responses to the effect that stereotypes are a necessary part of humor, without which apparently no effective communication would be possible. It's practically a claim to the right to stereotype other races. In another response, a commenter points out that there also exist stereotypes of English and French people, as though all stereotypes are morally equivalent.