Human rights for starters anyway were never based upon biological realities. They are entirely based upon feelings, morals, values, principles, ideals.
Asking why should women make space in single sex spaces for men who say they are women is a bit like asking why should anyone make space for anyone in any given space. The answer is simply because no rights are absolute - so in just the same way as men had to make room for women in the workplace, so too do women have to make room for men who say they are women in women’s spaces.
It’s not a human right to identify oneself as either black or disabled if one is neither black nor disabled, and that’s not a right I personally would have any interest in supporting. Could it become a human right at some point in the future? Possibly. But at the moment there doesn’t appear to be any demand for it, unlike the circumstances of people who are transgender or non-binary.
I do agree with you that body dysphoria and dysmorphia does need careful handling, and that’s why I don’t particularly care for someone like Yanniv who IMO is frankly taking the piss. I don’t support the idea of ‘transitioning’ though because as you’ve already pointed out - it’s biologically impossible, and at best all will ever be achieved is an approximation of the sex they aspire to be, whether that be either male or female. There are a growing number of people identifying themselves as transgender who have no inclination to undergo any kind of medical treatment, instead simply satisfying themselves with social transition (or pulling on a dress, makeup and high heels, if you prefer), and there are those people for whom the results of their medical treatments are unsatisfying, and they revert to their previous physiology before medical or surgical transition (or try to anyway, with mixed and often unfortunate results). The point I’m making is that in just the same way as we are often reminded that women are not a hive mind, neither are people who are transgender - they all have their own ideas and it’s a pretty murky rabbit hole between ”truscum” and “tucutes” (don’t look at me, I don’t come up with these terms ).
Simply declaring yourself something is of course meaningless, but if you are legally recognised in law as whatever you claim to be, then that is exercising what is, contrary to your opinion, a human right. It would be pandering to narcissists if we were simply to allow anyone to declare what are or aren’t human rights based upon their own internal feelings, and that’s why human rights law doesn’t pander to your opinion for example. I’m not suggesting you’re a narcissist, but that’s the definition of a narcissist, and you’re right, it’s not the answer - no one individual should have the power to determine what human rights another individual is or isn’t entitled to. Human rights are recognised and protected by the State, and so in just the same way as you aren’t obligated to indulge anyone you don’t want to, they too have the same right not to indulge you if they choose not to. They also have the right to be recognised in law as their preferred gender by the State.
If you choose self id in this scenario then you must be prepared for all the crazy scenarios such as black and disabled that are coming and their claims must be no less legitimate than women being told that women can have a penis.
BTW - thanks for all the great jobs you gave us. Very kind.