Womens sports were never about protecting women, full stop. They were sold as such, sure (racist and transphobic moralizing fear campaigns have so often scored political offices).
Women's sports exist to protect (a faceless majority of) men's egos from women's excellence. The fact that FIDE still enforces women's chess is a glaring example.
To "cover all bases" though: When it comes to physiology, it would make so much more sense to have weight classes irregardless of sex or gender identity.
Fact is we have entrenched, wealthy institutions with lots of bastards who refuse to see the humanity of another gender or skin tone other than their own, and until they croak they'll drag out every backwards tradition they can force down our throats.
Seems like some users thought this thread was a free pass to question neurospicy folks legitimacy regardless of assholeishness. Cool lemmy.world, cool /s