I think you have particularly dumb colleagues then. If you post this question to an average STEM PhD in China (not even from China. In China) they'll get it right.

This question is the "unmisleading" version of a very common misleading question about sexism. ChatGPT learned the original, misleading version too well that it can't answer the unmisleading version.

Humans who don't have the original version ingrained in their brains will answer it with ease. It's not even a tricky question to humans.