@Badqueen But the race organisers were dishonest, weren't they? By saying that people enter races that most closely align with their physical performance, they are giving the impression that all those in the 'women's' race (renamed to lightening, presumably so that transmen can enter) contains people all within the normal range of women's physicality and performance. But that wasn't the case was it? Because, as others have said, Emily is apparently a good cyclist, even in the men's races, which they have also recently entered. And two males got the top two places. It would be interesting to know what percentage of entrants were transwomen, against the percentage of transwomen were on the winning podium.
This was, in effect, a completely mixed sex race, with absolutely no criteria or testing to try to establish that people were facing fair competition within their race group. So the organisers should stop dishonestly pretending that it was a fair race, against people of 'aligned' abilities.
And naming it 'inclusion' means that they are implying that single sex races are 'exclusive'. When in reality, single sex races meet the principles of equality, that this race does not as it does not acknowledge that some groups of people (women) are disadvantaged when racing against males.
And finally, your argument is a bit like the CEO of Stonewall claiming that there is no issue with some VAWG services admitting males as there are still single sex services, when in reality the agenda that Stonewall et al are promoting is leading to the removal of single sex services as being 'exclusive' (also known as upholding the principles of equality), meaning that many women do not have a choice of single sex services when they need them. Again, its dishonest.
What the movement you are defending has done has removed the principles of equality (which has coherence and a sound evidence base to it) with that of 'inclusion' which is simplistic, incoherent and reintroduces inequality for groups facing disadvantage against other groups (such as women in sport).