It's just a specific example of a more general problem that Alexander's article highlights in a different way with the height example. ChatGPT will confidently lie to you about things that it does actually know. The questioner here is not speaking like a race-obsessed weirdo, they're proving that it will rapidly contradict itself or answer a different question to the one asked, without noticing that its answers taken together are in logical contradiction.

For some discussions this sort of illogical reasoning might not matter (perhaps like this one). The question is for what other sorts of topics does it act this way, and would any of them cause problems for real world production use cases.