Another thought, about trans issues: there is the definition of "sex" used by transphobes which is self obviously true - that humans are a sexual dimorphic species, and sex can be defined as the progression down a developmental pathway to produce one of 2 types of gamete...

...and this is true whether or not someone actual can produce that type of gamete.

I mean, yeah sure, for the value of it that definition is true. However, using that as the social, legal, and cultural definition of "sex" is rather like a police officer turning up ...

...to the scene of a car crash, asking a bystander what happened, and the bystander starting to describe the quantum mechanical effects of quarks. Sure, the collision of the cars absolutely could not have happened without those quantum effects (as they form the basis of our ...

...material world, however no one expects a description of a car accident to include that explanation. You don't go through the entire physical and material description of the car crash, but rather focus on the "macro-effects" of those processes. In the same way...

...sex as defined through developmental pathways may undoubtedly be correct, however in actual reality, it doesn't matter, it isn't a useful definition to use, and doesn't correspond to what information we need to know. Like with QM in a car crash, "developmental pathways"...

...are too far removed from everyday experience to be useful or relevant.

Or, to put it another way, no one gives a fuck about your prenatal development pathway once you are an adult.