I say to them: that's unfair, but did you know that trans women are literally killed because people don't like them? Maybe let's let them have this one.
So lets destroy women's sport, because violent men have killed Trans women
That's quite a leap.
If Trans people generally want more acceptance, this is hardly the way to do it. What do you imagine the families/friends/coaches etc who have girls involved in competitive sport (as I do) are going to think when they watch that video, and know similar is coming their way soon?
I doubt its going to be "Oh, how brave and inclusive" is it? They know that they are watching males, who couldn't dominate if they had to compete with other males.
The phrase " cheating bastards" springs to mind...