I think the context matters. If someone is serious about wanting to kill black people because they are black, then that's racist. But pointing out the hypothetical hypocrisy in a post in a joking way while explicitly stating that it was merely the stereotype (I didn't call black people monkeys which would be racist if serious; I merely said the stereotypical black person is a monkey and that it was in a joking matter so this probably doesn't violate the CoC. If I said the stereotypical Asian was smart, this wouldn't be racist and it wouldn't even be stereotyping if I point out that it is a stereotype. If I said that all Asians were smart, it would be a stereotype. Hiring someone because they are Asian on the assumption that they are smart based on nothing but their race is racist). If I endorsed the stereotype I said, it would be racist. If I merely point out that it is a stereotype, then it is not racist.
Moreover, I checked the CoC and it doesn't explicitly prohibit racist talking points, so even if I was being racist (which I wasn't) it wouldn't violate the CoC.
All the CoC prohibits is the following:
You may not post or link to media that is excessively gory or violent.
You may not post or link to pornography or other explicit adult sexual material.
You may not engage in commercial advertising anywhere on the site.
Spam is prohibited, and any overtly repetitive nonsensical posts are considered spam.
Unwarranted systemic vulgarity and invectives, which may include off topic personal attacks and/or hate speech, are subject to disciplinary actions.
The closest thing I did was somehow spew hate speech even though the only group I could even be accused of doing this to is to African Americans (which that's not how hate speech works. Hate is required and pointing out a stereotype is not hate). The definition of hate speech is:
abusive or threatening speech or writing that expresses prejudice on the basis of ethnicity, religion, sexual orientation, or similar grounds.
What I said was not abusive or threatening and it was merely pointing out a stereotype (not even endorsing the stereotype, but pointing it out).