"Hi i'm a cyclist who was born female.
The fact is, that if we ignore all trans athletes, the (cis)women who excel at sport are those who are lucky enough to be born with a "more male" physiology:
less body fat, higher testosterone, bigger lung capacity etc."
That's completely false and quite offensive.
At the long jump for example, the free testosterone range of 56 female competitors at two World Championships was 2.1 - 24.2 pmol/L.
The 5th and 95th percentile figures for 30yo women are 4.2 and 22.2 pmol/L respectively.
So elite female athletes are not in fact 'more male' in terms of their testosterone levels, since their testosterone levels are female. In some events female athletes with lower testosterone do better than female athletes with higher testosterone.
That's NOT to say testosterone is not performance-enhancing, but the average male level of testosterone is TWENTY times higher than the average female level, so to the extent that elite women athletes are elite women athletes it is because their physiology is elite, but it is NOT a male physiology, or a 'more male' physiology.
Masculinity is expressed in the production of small gametes (not present in female athletes) and testicles producing testosterone (ditto). Masculinity does result in certain physiological factors being on average larger, but that does not make tall women 'more masculine' FFS