I get what you’re saying and completely agree that womens oppression is sex based. But sometimes I think agreeing that gender is social construct passively agrees with the notion that women confirm to a set of stereotypical behaviours. I think all adult females should be able to identify as women even if they have ‘gender nonconforming’ behaviours. Do you see what I mean? I’m coming from the position that a woman who dresses in men’s clothing is still a woman and vice versa
Shall we go back to basics? All women (by this I mean human beings born with XX chromosomes / uteruses etc) are women whether they like it or not. They don't identify as women, they simply biologically are women. They cannot become men, no matter what hormones they take or what surgery they have. Every cell in their body is XX and a thousand years after they die an archaeologist of the future will be able to identify them as female by eye, because women's skeletons are different from men.
People born female (ie women) are subjected from birth (even before birth) to a set of social stereotypes we call gender. There were experiments back in the 70s that involved dressing a baby in blue one day and pink on another and recording how the baby was talked to and played with and the language used around it and the expectations of those who encountered it. Pink and blue affected at a profound level the way people behaved. Even before we can speak or understand, we learn what we are supposed to be and do. And so on through life. Girl babies, girls and women are talked to, behaved towards and expected to behave differently to boy babies. This is gender: sexual stereotyping.
Do you seriously think that any of us here on the feminism board would say that a woman engineer or a woman bricklayer or a woman in a man's suit wasn't a woman?
Are you young? Who taught you that you could stop being a woman by putting on men's clothes? I'm really interested in where people are picking up these ideas.