It’s particularly disingenuous because the big sports federations actually talk about ‘Sport Sex’ (which can be different from legal sex and/or biological/chromosomal sex) so they know that it’s not ‘gender’ that’s relevant.
The entire argument in Coe’s world is where the defining lines of female ‘Sports Sex’ are.
(eg a trans man with a GRC who hasn’t taken testosterone can be female for sport sex purposes, regardless of their male legal status in their home nation, a person with XY chromosomes and high serum testosterone can be considered female for sports sex as long as she has CAIS - complete androgen insensitivity syndrome and thus has not had a male puberty, whereas 5ARD, Caster Semenya’s DSD, does involve vitalisation at puberty, hence all the arguing as to whether Semenya’s legal sex, female, or bio sex, male, should be Semenya’s sport sex (obviously it should be male but the legal wrangling is over this categorisation)
https://voelkerrechtsblog.org/de/sport-sex-before-the-european-court-of-human-rights/
(there is some debate re: CAIS athletes but they have a much sounder argument than 5ARD athletes)
So yes, It can be (medically, legally) complicated with DSD athletes but trans athletes are not at all complicated, their change of legal sex should be considered separate to their sports sex (although obvs trans men cannot take testosterone as that’s a Performance Enhancing Drug).
There are so many niche categories in the Paralympics that it surely wouldn’t be too difficult to carve out something there for DSD & trans athletes?)
We should go back to cheek swabbing all Olympic female athletes and anyone who is found to have XY can then make their own private, medical and legal case arguments.
Once you get to 16 without menses it’s a red flag that needs to be checked by a doctor anyway, coaches should ensure their young charges are tested before they get to a
level where testing becomes compulsory, so that the adolescent finds out privately rather than on the world stage (at the moment coaches are incentivised to recruit and exploit DSD athletes, rather than protect their wellbeing)
Athletes of both sexes have to wee in cups in front of doping monitors, so it’s not as if they have much privacy or dignity anyway.