The main way I can think of off-hand to try and make it scientific is to ask about correlational clusters. And then you get way more than two genders, but you definitely get some clusters that contain both transwomen and men (e.g. if I hear a video game speed runner or open source software passion projecf maker using she/her pronouns they're trans more often than not).
And correlational clusters is one of the few ways it's not just semantics.
Seems to be quite a lot of studies finding notable differences in brain “readings” (for want of a better word, sorry not a scientist) between transgender people and others sharing their biological sex.
The first study I read highlights the findings of many studies that the insula of transgender individuals is very different to cisgender individuals, with the insula being “associated with body and self-perception.” [0]
Gosh our brains are truly something else and are not so easily categorised! Now if only I could find a way to learn all this stuff a little bit faster…
[0] https://www.nature.com/articles/s41386-020-0666-3
A collection of many other studies: https://en.m.wikipedia.org/wiki/Causes_of_gender_incongruenc...
It’s not immoral to recognize that you and your family and most of the people you know are split between penis and vagina.
It is immoral to police thoughts you disagree with. Believing race exists leads to dehumanization and hate. Maybe skin color doesn’t exist next? It’s just a representation with utility of similar feature/genetic groups that happened to evolve under similar environmental conditions. Is this scientifically unsound also?
Whereas dehumanization and hate mean everything that makes people uncomfortable
Really? It’s scientifically unsound? Come on now.