@CandlelightGlow
What NS has said is right and fair.
Fair to who? The idea that males could ever belong in the female estate, that there is ever a context where that is reasonable and acceptable, is predicted entirely on meeting the male need.
This whole mess exists because of this fantasy that some males have an inner mental thingyness that makes them "actually" women so the right place for them is with other women. So now we have the cost and worry, case by case, on how we square the circle of fitting male people into structures that were never intended to be mixed sex, and how we judge just who has the right inner thingyness to qualify, and who is genuine but deluded, and who is just faking. (And forgive me if I don't think "wait till he rapes someone" is the best way of doing that.)
But the thing is, even if this thingyness in truth exists, even there is a root cause, a difference in these men which makes them genuinely different to other males, the jump that this "thingyness" is actually womanhood, and it is this, not the undeniable and inescapable fact of our bodies, that determines the challenges female people face is ludicrous. Laughably inane.
The fantasy that these men could ever be more appropriately housed as women simply does not stand even the smallest of critical thought. But take away that fantasy, and why would anyone ever even need to find a "fair" way to accommodate men in female-only spaces in the first place?