I find it interesting that generally speaking, the same people that will espouse the vast differences between a male, female, trans, gay, bi, etc mind which would cause grave pain, anguish, and otherwise discomfort to that person if their gender identity/preference isn't accounted for, will also refuse to accept that there might be genuine differences in the minds of individuals, extrapolated to groups of individuals, that might give them different interest, preferences, and courses of life.
Nobody is saying there are literally no differences, but rather whether various differences are consequential as claimed. Eg gays too effeminate to fight an enemy.
"Diversity" much like PC is just a mental crutch for folks too slow to understand the nuance there.