@ Throbert McGee: Laws are dynamic. There will always be a new circumstance to evolve and develope the existing ones. So, if these guys are married, they should be able to register the kids with both names.
There’s a point where I partially agree with you, but it’s my very own POV. Personally, since I come from a country with a lot of abandoned or bad life conditioned children, I’d rather adopt a kid than have my own one from a surrogate.