I've just listened to it. If I were nitpicky...
...I'd take issue with preamble. The presenter said something like transgender people not welcome in women's sports. Tm who aren't taking testosterone are welcome.
Also, kudos to Charlie, who didn't have much beyond regurgitated slogans but at least showed up (the silences were nearly as painful as the mistruths).
Actually, I think I'd agree with Charlie's second answer about science and fairness. I think I'm more likely to be pleased by the results of unbiased science. Any reasonable person, one not blinded by wishful thinking and ideology, would see men identifying into women's sports is not fair.
Then if we're talking about people dropping out of sport. Is the already woeful participation of girls in sport likely to be improve if they have the prospect of being tackled by the fragrant Tiffany or, on the subject of tackle, having to share a changing room with 'her'.