Why are we afraid of homosexuals adopting? Is it because they may grow up to be homosexuals? ::Gasp:: It's going to happen anyway, every homosexual I know has a mother and a father. What's the difference? Kids are going to get made fun of regardless, it just happens.
And in regards to children in general being adopted and not having a choice. A friend of mine is adopted and was adopted by a hetrosexual couple and doesn't get along with them. In fact, now she has no contact with them. So hetrosexual couple adopting doesn't guarantee a happy household. (That was a bit off topic, but it kinda fits)