Originally a comment by Sastra on Once and for all.

If you’re going to make an argument which ought to rest on truth and principle, slipping in “it doesn’t happen a lot” is a fatal flaw. It tacitly admits that the truth and principles behind what you’re advocating are weak.

If we think the authorities in Iran should stop punishing women for not wearing a hijab, reassuring them that they can repeal the law because don’t worry, most of the women in Iran will dress properly and they’ll hardly even notice the ones who don’t undercuts women’s freedom from constraint. Now it’s a numbers game. How many women flaunting their uncovered heads should it take for the modesty laws to come back? How many transwomen would have to dominate sports for NWLC to admit that yeah, they were wrong so now let’s ban them from women’s teams? 2%? 10%? 50%? 90%?

The truth is that they’re not justifying a law, they’re using a stalling tactic. If, in 5 or 10 years time, there’s no possible way to deny that TW are indeed taking over women’s sports, the gender ideologues will find a way to celebrate that and pretend they never said a damn thing about how TW are just a negligible blip on the radar, be a sport and let them play. It’ll be “girls born with natural gifts belong there.” Hypocrites.