In this situation i don't think anyone is being hard done by. Especially not men. The parent 1/2 thing is obviously for same sex couples, which again, makes me think who has the right to be 1 or 2.
Imagine this.. Two ladies in a relationship wish to have a kid, one lady gets a sperm donor and becomes pregnant but both ladies agreed.
Should the childs biological mother be parent 1, or 2? Why, why not?
It just brings up other issues and statuses people don't want.
The status of being a man, the status of being a woman, the status of being one or two.