Ryan is (was) a Catholic.
The position of the Catholic Church is that adoption of a child by a homosexual couple / person actually does violence to that child (and I'm not even talking about possible sexual abuse):
As experience has shown, the absence of sexual complementarity in these unions creates obstacles in the normal development of children who would be placed in the care of such persons. They would be deprived of the experience of either fatherhood or motherhood. Allowing children to be adopted by persons living in such unions would actually mean doing violence to these children, in the sense that their condition of dependency would be used to place them in an environment that is not conducive to their full human development.
ping to 37 - from introduction:
Since this question relates to the natural moral law, the arguments that follow are addressed not only to those who believe in Christ, but to all persons committed to promoting and defending the common good of society.
The idea that children are better off adopted by "anything", than they would be if not adopted is illogical. It suggests that nothing is worse than a children's home or a foster arrangement.
That is just rich from them...the same church that has ruined more millions more kids lives through violence and abuse than gay parents could ever have a chance to dream of...