I don't mean to overwhelm you, but here are some articles on the subject:
Studies of Homosexual Parenting: A Critical Review
Homosexual Parenting: Placing Children at Risk
Homosexual Parenting Studies Are Flawed, Report Says
Homosexual Parents: 'Hidden Study' Uncovered
Experts Worldwide Find Gay Adoption Harmful for Children
Review of Research on Homosexual Parenting, Adoption, And Foster Parenting
Homosexual Parenting: Is It Time For Change?
Where Children Have No Voice: The"Right" of Adoption by Homosexual Partners
Dangers of Same-Sex Couples Adopting Children (Part 1)
Dangers of Same-Sex Couples Adopting Children (Part 2)
Children and homosexual adoption
Trophy children
Hmmmmmmm. The evidence would seem to be pretty convincing ... But if you don't consider homosexuality wrong to begin with, you probably wouldn't care much if your child grew up to be a homosexual. Thus perversion begets perversion, and morality is defined down one step closer to the beasts.
A well-deserved BTTT.