If you think you were right, which part of biology is the sex identifier? You haven’t answered that.
I have already very clearly articulated my answer to this. Go back up a couple of comments and read it again if you need to.
though I would argue it potentially changes your sex
Then you are arguing against the prevailing medical and scientific opinions, gender affirming care can assist with aligning secondary sex characteristics but does not change the patients sex.
It has long been an argument of the trans community that gender and sex are different, which Im not disputing at all but you are trying to make unclear.
Feminizing hormone therapy is used to make physical changes in the body that are caused by female hormones during puberty. Those changes are called secondary sex characteristics.
https://www.mayoclinic.org/tests-procedures/feminizing-hormone-therapy/about/pac-20385096
For your convenience you can check the difference between primary and secondary sex characteristics here:
Artificial changes to a body are just that, artificial.
Inserting an rfid chip under my skin doesn’t make me a credit card. Taking some hormones doesn’t make you female.
This incessant boundary shifting and virtue signalling that everyone must play along with the artificial and pretend it is reality will never see broad public acceptance.
Changing gender is real, changing sex is not and you could go ahead and provide a definition of sex that is holistic and entirely changeable with current technology if you disagree.