Biden whispering

men who transition lose the muscle mass they had as a man.

hrt is really bad for your muscles.

Yes, but there will still always be differences.
Men have leaner muscles than woman, as well tending to have larger fast-twitch muscle fibers, longer limbs and wider shoulders, and larger lungs. Hormonal balance may be altered, but are still not quite the same, and adrenalin, etc, also have influence on how muscles react.

This explains why males transitioned to female have an advantage while female to male tend not to do as well as their biologically born male counterparts in sports.

I think you may be missing the actual point here, which is the left wants to say that anyone who identifies as female should be allowed to participate in athletics against biological women.

Would you agree or disagree that a biological male just identifying as female does absolutely nothing to muscle mass?

the entire point why gender segregation in sports is a thing is because of differences in muscle tone between genders.

TG women who compete in women's sports have gone through HRT and physically have the same muscle tone as women.

"the entire point why gender segregation in sports is a thing is because of differences in muscle tone between genders."

Yes. And general physical size.

"TG women who compete in women's sports have gone through HRT and physically have the same muscle tone as women."

I must point you right back to my reply, which I think you somehow avoided... "...the left wants to say that anyone who identifies as female should be allowed to participate in athletics against biological women."

So the left isn't saying only TG women who've gone through HRT should be able to compete against biological women, they're saying any TG woman. And that includes those who identify as women but have not yet gone through HRT.

Unless you think TG women who identify as women but who haven't undergone HRT aren't women. Do you?

Since when is this "left" you keep referring to a biological component in the discussion of female and male physiology?

that isn't the case, but to inform you otherwise would be a waste of time, as you are so stuck in your own paradigm that evidence of the real world to you is fake news.