Lets look at it this way, you have to chose between a child going to a couple, one couple are heterosexual and the other a same sex couple. Both couples can offer the child exactly the type of home, love and support. Sadly the Wife of the hetero couple can't have children. Which couple would you chose?
You make no sense. If there was one baby in the world left for adoption your question may just about have a point. There's not and it doesn't. Now shut up, Eggheads is on.