Personally, I thought this current dilemma would have been settled by the Renee Richards matter.
Before transition, as a young man and trained athlete, Raskind was a very good but not professional-calibre tennis player. After transition (in her 40’s, which is unusually old for a woman professional) she reached a ranking of 20th in the world.
Why? Simple physics:
Males, at birth, and later due to adolescent development mitigated by testosterone, have significant differences in the skeleton compared to females. There’s a pretty long list of differences, but they all add up to the same things: stronger, faster. Hormone therapy reduces (or eliminates) the musculature advantages but the skeletal advantages remain. (As do advantages in the cardiovascular system, but let’s not turn this into a scientific article.)
Bottom line is that even in her 40’s, after years of hormone therapy and sexual reassignment surgery, Richards’ skeletal advantages were enough to make an above average male tennis player one of the top 20 female players in the world.
Anyway, excuse the rant, but I agree with you completely.