I think the important thing is simply to defer to scientists in some matters. There might be significant advantages to being a trans-woman if you have gone through pubertry as a male. Doesn't mean that you're not a woman - it may mean that you have particular bone density/muscle twitch fibres that give you an advantage.

That advantage may not apply in say.... ice-hockey, basketball or skateboarding. It may not apply at all in many events. I would never suggest a blanket ban on anyone participating - I would suggest that scientists do their best to work out how to keep individual sports equitable and fair to all those who compete.

Thanks for your comment and carrying on the discussion - always lovely to see you pop up. :o)