Emily's Cat
Rarely prone to hissy-fits
It would be hard to know if such a self-determination change was meaningful because it's pretty much impossible to know, as an outsider, whether that person was being sincere. Such uncertainties don't mean that self-determined perceptions aren't meaningful.
They might be important to the individual who is self-perceiving them, but I fail to see how any individuals completely subjective, unverifiable, self-perception should be binding on anyone else.
It brings me back to Eddie Izzard. Izzard has been an out transvestite straight man for a long time. He has worn make-up and women's clothing frequently as an adult man.
Recently, Izzard has decided that he is a transwoman.
Izzard has changed literally nothing at all about himself. He is not changing how he dresses or how he presents himself. He has no intention of undergoing any medical procedures at all. He does not have a diagnosis of gender dysphoria, he will not be taking hormones, or having any surgeries at all done.
With the utterance of some magic words, Izzard went from being a well-regarded male comedian who happens to be a transvestite... to the funniest female comedian. Were I Sarah Millican, I'd be a it miffed at this.
Literally nothing at all about Izzard has changed. Nothing.
Yet, on the basis of a declaration that cannot be in any way verified... Izzard now is on the side arguing that he should have access to female changing spaces, female prisons, female shelters, and female honors as a right.
Why on earth should anyone at all - let alone actual females - be obligated to accommodate his declaration?