If the people who raise the child love it, then I don't see the problem, really.
My wife and I raise our son together. Now that he's no longer breastfed, there's nothing that she can do what I can't as well and vice versa. We can both change his diaper, give him his milk, carry him around, play with him, give him his bath etc etc. I love doing all those things and so does she. I don't see how me being heterosexual or homosexual would make me a better or worse parent. My sexual orientation has nothing to do with my capabilities of raising my child, thank you very much.
Also, this:
A child has not to be exclusively raised by its' mother and its' father, that's a pretty modern concept. If children have been raised by their extended family for centuries, then how would two men or two women raising a child be "wrong"?
Also, there's a lot of hypocrisy with this subject. Let's be honest here, the "problem" is not two women raising a child, the "problem" is two men raising a child. I'm personally offended by that. Me being a man does not make me a worse parent than my wife.
I do everything my wife does and my son seems perfectly happy, so screw all those with their prejudice that a male is somehow, for some weird, outdated reasons, less fit for parenthood than a female for the sole reason that he's male.
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