@WaxOnFeckOff
I guess the fair way to test it is to have players on the same ranking play or race each other. I wonder why all the world records held by men are better than those for women. Sure if my non tennis playing husband played a game against even a low ranked woman she'd probably beat him but that doesn't mean he doesn't have physical advantage, just that her sporting advantage more than cancels it out.
The Williams sisters claimed that they could beat any man outside the top 200 rankings. So a guy ranked 203 took it on. He prepared by playing a round of golf and having a couple of drinks, and proceeded to beat them both, I think by 6-1 and 6-2. The sisters then said they figured it would be 350 ranking they could compete against, though that's never been tested. This is Venus and Serena Williams. Beatable by the top 350 men... at least.
The man they played said they were using shots that wouldn't be returnable in the women's game, but he could reach pretty easily, and that he was putting a lot of spin on his shots that women just aren't strong enough to contend against.
The argument that if there were a huge advantage all sports would be dominated by male trans athletes completely sidesteps the reality that the number of those transitioning is now rocketing, and very few people, overall, play elite sports... and that most males transition when older, too, so at present they are likelier to transition after their physical peak has already passed. As time goes on, it will happen, if it is allowed to, and across all classes, too. The natural advantage of male biology will mean mediocre male athletes will become world-beaters in the women's classes. Pretending it won't happen is facile.
People need to compete in sex-based categories, and leave gender out of it. Mixed gender, great... and single sex. The fact this is even being argued at all is surreal, and also, sadly evidence of the naked contempt in which women are held.