I've seen a lot of TRA lobby responses along the lines of 'there are so few transgirls/women that letting them play women's sports won't make any difference...'
Apart from all the examples we've already seen where it is makng a difference, eh? Here's another - demonstrating how letting boys who identify as girls (and are almost certainly not on any sort of meds, have gone through puberty, etc - so are simply boys who say they're girls) will push girls out of their own sports:
savewomenssports.com/sws-updates/f/emilys-story?fbclid=IwAR0RsmB6uEUyqBWRSvBJt9LQ4PDNOkUAc9iyRpGVUSRwzXx6Q_N0Rgog_hk