That's a wholly different argument, Rocket. I was of the opinion that only a man and a woman should be parents to children, but as my partner pointed out, you get shit parents no matter what. If a kid is going to happy and loving household, well we shouldn't stand in the way of that.
The tranny cyclist should be in their own category and shouldn't be able to claim victory in a straight sex event. If it was me I'd be embarrassed to even pretend it was a level playing field and claiming victory. It's morally fraudulent. That said, it's not their fault the category doesn't exist. maybe this will spur the development on as much like in the paralympics where you have different events based on disabilities, I fail to see how not being male or female is any different.