You mean, like evolution, epidemiology, vaccines and stuff?

If you think about the gender thing, this is a social ideology. Biology is irrelevant to which bathroom someone can use.

Tell that to women getting their skull crushed by biological men in female sports.

Biology does not say anything about how we create categories for athletes either... Separating men from women is arbitrary, and we could very well use other criteria (weight, height, or whatever). Choosing to separate genders instead of sexes is a political decision; you are conflating social and scientific issues. Also, citation needed.