Denying a child it's mother or father is wrong
This is such an over simplified view of the world. Adoption agencies are fine with single sex parents adopting; not because they are desperate to home children but because they see nothing "wrong" with a family headed by 2 dads or 2 mums or indeed single parents.
If you mean by this statement that a child should never be separated from a biological parent then that rules egg or sperm donation as "wrong" also parents divorcing? Step parents? What about a single woman that wishes to have a child by sperm donation because she hasn't met a life partner? Should she be denied?
Let's also be realistic about same sex parents. I know a gay couple with a son and he has grown up to be a well adjusted lovely man. He grew up with a variety of female figures in his life; very close to his grandmother, aunts, uncles, family friends. A family isn't just a mum and dad.
There are many people who have been brought up in a loving family set up that isn't your usual mum + dad = child and who are not damaged or feel denied.
You're entitled to your views Sid but I disagree with a blanket statement of "it's wrong" That's far too black and white for our modern society.