Trans athletes make great gains, yet resentment still flares

I guess you never played any sort of competitive sport in your life.
You guessed wrong.

I did reasonably well in reading comprehension too, which is maybe why I'm able to tell the difference between "a male undergoing hormone therapy" and "a male".

and neither did they.
That'd be wrong too. In at least some of the literature reviewed, the author's interest stems in part from their own competitive athletic experiences.