I de-lurked a couple of pages ago for a slightly longer explanation of what I find confusing and puzzling in this debate, and I’m de-lurking again to ask another question of posters like LondonJohn and Boudicca and anyone else who is behind the simple unqualified “trans women are women” position. For example LondonJohn stating earlier “You don't seem to realise that, for example, a trans woman is not a man.”
I just can’t get over the idea that not only do a significant proportion of trans women retain their biologically male genitalia, a significant proportion of them continue using their male genitalia to have penetrative sex with partners (including about 30% with female partners if i’m understanding Wikipedia correctly not counting those who are bisexual). How is a person born a man, with functioning male sex organs, and continuing to use their male sexual organs like a man, not a man? Does this fact not make you at all concede that in some significant way at least, those individuals are still male/men? To me, it’s about the least woman-like characteristics I can think of, frankly.