Do you believe women are assigned a set of stereotyped behavioural expectations -a female gender role- at birth by the patriarchy which they are then expected to observe throughout their lives on pain of abuse and often death, and which inform the experiences and opportunities they are allowed to partake in?
Women and men are subject to expectations of gender stereotypes based on their sex, but some people in all societies and eras have resisted them. The whole point of feminism is to resist the gender stereotype imposed on women, and that is why through feminism things have changed so much for females over time, in most parts of the world though to varying degrees - in terms of education, careers, finances, laws and so on.
Gender stereotypes are not "assigned at birth" automatically - it depends who and where you are, who your parents are etc. My kids are male and female, but I've always made sure that while that matters in certain specific ways, it doesn't affect what they can do with their lives.
Part of genderist ideology involves massively overstating the enforcement of gender and saying that gender is a "binary" and assigned at birth, when it's just not. Sex is observed at birth, but to what extent you have gender imposed on you varies a great deal - and even if it is imposed, you can resist it without that meaning your sex isn't "right". You can be as feminine as you like and still be male and there is nothing wrong with that. Thinking that being feminine (gender) means you are a woman (sex) is just reinforcing gender stereotyping. It's just saying women do this stuff, men do that stuff, and that's how it should be so I have to "change sex".