Never claimed that sex is the only factor in sports performance. It's the biggest determinant though. We know this because in countries where male and female athletes receive the same funding, nutrition, support, training facilities - male performance (ie records, times) still outstrips female performance.
You've been forced you to into admitting that all other factors have to matched before a comparison between sexes can be made, which is tantamount to admitting you were wrong.
I've never said that biological sex is not an important factor, I've said that it is not the only important factor, but it has been your emphasis that it is. Neither have I said that any one other factor is a bigger factor than sex; but the sum of the other factors contained within the set are bigger than sex alone.
The VTTA data is not just a limited randomised trial, or an opinion, it uses the competition times of every rider who enters a time trial event in the UK, separating cohorts not just by sex but also the kind of machine they ride. So I'll say again from those standards that a 40 year old woman will beat a 66 year old man on average, but of course trawling through their data outliers will be found where say, the fastest 80 man set a faster time than the slowest 40 year old woman.
With all of your careful selecting and cherry-picking, this is how you personally sift data, you trawl away to find the one instance where the best of one group beat the worst the other in a perverse way.
The other thing we can learn from the standardised sets that include every athlete in that set, is that the much bigger majority of participants in sport are male, as has always been the case.
Where the pool of talent is smaller, ie women in time-trialling, their results will rarely match the results of the bigger pool. The bigots went on endlessly about Laurel Hubbard in the weightlifting events in the Olympics. New Zealand is a small country with a small population, just 5 million. Laurel failed to lift a weight but managed somehow to maintain her dignity. The winner came from a country (China) with a population 280 times bigger than NZ. Laurel was 43 years old competing against younger athletes.
In the case of nutrition in children, you are using the 30p Lee argument - it's just that feeding the nations kids on the cheapest available foods ultra-processed food to fill bellies, is not the same as providing nutritious meals for their bodily development. Children from the poorest families will be affected - affected for life, not just for Christmas. Why this doesn't seem to bother you - demonstrated by your willingness to simply ignore it is beyond belief.
One minute you are sobbing it's all about those poor kids at the Tavistock Centre, and in the next minute it becomes 'let's ignore the malnourished kids and their futures, because the biological sex of trans people playing a game of chess is paramount'. In raising this, I'm not raising some side issue.
Those of us who have worked in education tend to know, that it is boys that are raised to be participants in after school sport so much more frequently (but not exclusively) than girls, that the families with resources do better than poorer families, that kids from homes with trauma or strife and those malnourished kids are the ones that never flourish in sport or education, and finally that inter-school competition generally tends to favour larger schools over smaller schools.
We also know that state sponsorship of sport makes a big difference to outcomes.
There is never going to be such a thing as a level playing field. It is unachievable.