they dont answer the question because they just expect everyone to have the same set of viewpoints, opinions, and beliefs as them (lack of theory of mind) so when they see someone suddenly ask "what is a woman" they see it as if you were to be saying something ridiculous like "what is 2+2"
"its obvious of course! why does this bigoted crazy man asking obvious questions everyone already knows the answer to is acting so full of himself? welp, time to move on, pretty sure everyone is cringing at him right now"
you can see it happening over and over again when troons are trying to debate matt walsh, when they finally go on to give their "true and honest" description of what a woman is they just act like theyre stating the obvious, even going as far as to wait for the crowd to magically begin clapping and cheering them.