So name one you think is an authority.
So name one you think is acceptable?
It seems to be a forum for people who ask for a breakdown of what one side of an argument are claiming, then bitch that the answer someone tries to provide isn't definitive or doesn't make sense.
If you can't name an authority you wish to accept, don't complain that the answers people provide aren't acceptable.
Science... specifically, Biological Science, is the only authority I accept in regards to the sex of individual
humans. I consider it to be the final arbiter of what is sex, and it should be used as the test for all sex segregation such as safe spaces and sports competition.
https://cihr-irsc.gc.ca/e/48642.html
Sex is immutable and unchangeable
in humans.
Sex refers to a set of biological attributes in humans and animals. It is primarily associated with physical and physiological features including chromosomes, gene expression, hormone levels and function, and reproductive/sexual anatomy.
As for Gender, it has nothing whatever to do with hard science.
Gender refers to the socially constructed roles, behaviors, expressions and identities of girls, women, boys, men, and gender diverse people. It influences how people perceive themselves and each other, how they act and interact, and the distribution of power and resources in society. Gender identity is not confined to a binary (girl/woman, boy/man) nor is it static; it exists along a continuum and can change over time. There is considerable diversity in how individuals and groups understand, experience and express gender through the roles they take on, the expectations placed on them, relations with others and the complex ways that gender is institutionalized in society.
The key to understanding why this is so is the realization that humans are the only species of animal in existence that have this issue. If disparate genders were a normal, everyday part of the natural world, we would see examples of transgender, gender fluid, non-binary, gender neutral, agender, pangender, genderqueer, two-spirit or third gender individuals
other than humans in the animal kingdom. We don't.
Humans are the only animals with genders - all other animals have sexes.