Honest answer since you seem new to this debate: there are tons of studies about IQ and race, most of them are heavily disputed, researching them is difficult because the field is so controversial, they're difficult to compare because there are so many different ways to define and measure "race" and "IQ", and the whole topic is so famously toxic and vitriolic that it tends to be a de facto banned topic on most fora, including this one.

That is a completely acceptable answer for the AI to give.

Just be honest and say that it is a controversial topic, and you don't want to discuss it. That is what a human would say.

Don't make us play 20 questions. It is insulting to the person interacting with the AI.

Of course, this gets back to how all this vaunted GPT stuff is ultimately mostly a black box and all attempts to control its responses are just adding more black boxes wrapped around the black box.