It's a shame this thread has been hijacked, because there are some important issues here. For example, when children are adopted, should they be separated completely from their original families? Suppose the mother recovers from her addiction, will she be able to see them? What about their father? Even if the grandparents cannot care for the children is it reasonable to limit them to seeing the children twice a year?
Alas, I suspect anyone genuinely interested in these questions will have gone away. Actually, I doubt the original poster was interested in these questions, this was just an excuse for a homophobic rant.