:(

Banned where?

And they put up this rule. In MSMG

Where?

Sex and gender have been synonymous for all of humanity. Clever wordsmithing games does not change reality.

Gender dysphoria is a very real mental disorder that deserves real treatment, not coddling. Look it up for yourself if you don't believe me.

Look up "Normal" - a term which no one in psychiatry has ever attempted to define.

You'd be hard pressed to find any mental condition or state that can't be defined as aberrent, if not in nature, then by degree and intensity. "Disorder" is a matter of perspective, relative, culture - even trends, fads can turn 'abnormal' to 'normal' rather quickly,,,

The various hermaphrodite instances are fringe cases and also not the same as the current social fad of "transgender."

At least till what point in the 20th century were they synonymous?

You contradict yourself though, saying XX & XY are sex, not gender, but then refer to rare cases where there are variations on the two usual combos as if those other configurations do have something to do with gender.