Clearly it takes more than a dichotomy of chromosomal options to define one's gender. You're drastically oversimplifying "biological science" in order to put forth an example of the left denying scientific fact.
More importantly though, the left's "agenda" with regards to trans people isn't about rejecting medical or scientific consensus on gender. A trans woman's doctor is still going to give her advice tailored to her specific case of being born with a male body. It's about accepting people for who they want to be, and that doesn't clash with any category of facts or knowledge. Implying otherwise is disingenuous.
https://en.wikipedia.org/wiki/Turner_syndrome
https://en.wikipedia.org/wiki/XY_gonadal_dysgenesis
https://en.wikipedia.org/wiki/Triple_X_syndrome
https://en.wikipedia.org/wiki/Tetrasomy_X
https://en.wikipedia.org/wiki/Pentasomy_X
https://en.wikipedia.org/wiki/XX_male_syndrome
Clearly it takes more than a dichotomy of chromosomal options to define one's gender. You're drastically oversimplifying "biological science" in order to put forth an example of the left denying scientific fact.
More importantly though, the left's "agenda" with regards to trans people isn't about rejecting medical or scientific consensus on gender. A trans woman's doctor is still going to give her advice tailored to her specific case of being born with a male body. It's about accepting people for who they want to be, and that doesn't clash with any category of facts or knowledge. Implying otherwise is disingenuous.