English is an organic language and can shift subtly with each speaker,. Especially if prior usage makes communication more difficult.

NOT having distinct terms for sex and gender makes communication and understanding harder. If you have alternate terms you think are better I’d love to hear them., but if all you have is an insistence that “incorrect English” is a thing I’ll just have to wish you a good day.

Male or female = sex = what’s in their pants.

Man or woman = gender = how they express and identify.

While I recognize that some may use these terms differently, I find that having a strict sex/gender seperation for them in my personal use helps greatly in keeping the concepts distinct and having empathy for those whose gender is not sex-conformant.

That it also leads to a pithy rebuttal to “what is a woman” bigotry is just a nice side effect. Apologies if my usage was not immediately apparent.

I think the best response is always “you don’t know that”. Sex and Gender are not the same thing, and adults should know by now that they can’t tell what’s in someone else’s pants by looking at their face.