>Guessing right most of the time isn't knowing. And people not knowing how sex and gender differ doesn't change the fact that they rely on gender markers lots and chromosomes never.

"gender markers" and "chromosomes" are the same thing for 99% of the population. So guessing really is knowing.

> People who menstruate is much shorter than your suggestion.

Women is even shorter and everybody in the whole world understands it.

I think most people understand chromosomes are too small to see.

People who menstruate is more accurate.