Do none of you have an issue with men and trans women being able to compete in whatever they want but trans men being effectively banned? That and almost every other issue... the answer is probably going to be NO... if an individual chooses to change their body, take drugs, modify their physiology then they have then chosen to remove themselves from some areas of life, like competitive sport UNTIL they organise a new category for themselves, as women did and are still doing today!
If there was an open and respectful debate, not attempt to remove, or inhabit, women's spaces then the chances are very high that all of the GC Feminist posters here would be marching shoulder to shoulder in solidarity with TRAs. Over time all the questions being asked here would be sorted, respectfully, mutually.
But that isn't happening. Which is why there is a seeming stalemate... although as a woman who is TERF, I don't see that, I see continued incursions, crimes etc.
The more we get hung up on the minutia here, like testosterone, specifics about sport etc, we won't get anywhere. Because we cannot solve that issue. We can discuss it. But demanding "What ifs" and stalling the discussion on them is pointless, and counter to Betrand's OP.
Sadly, as we know from various other threads, 3rd spaces have never been an option that TRAs will accept. Later thrads have illustrated why women are also experiencing issues with some of them!
Common ground is receding...