@Ironchew, Magus:
Both of you, if you're going to play the semantics game, at least do it right. State what you think the actual differences between "disorder of sexual preference" and "sexual orientation" are, other than that the former sounds worse than the latter. Otherwise you're not having an argument so much as spewing angry noise at each other.
Simple. Kids who have been sexually abused are more likely to become pedophiles when they grow up. There is a traceable cause and effect leading to the fact that this is a disorder, a disruption of what would be normal for that person. It's worth noting that disorders can set in on their own, including this own.
On the other hand, homosexuality occurs in the same way heterosexuality, the "intended course", is occurred, just in lesser numbers. Bell curve arguments of "Abnormal" aside, functionally a homosexual person is identical to a heterosexual person, aside from their "mating target." Homosexuality does have a correlation with artistic capability and being left-handed, though, so it does have an emphasis on one side of the brain, where it could be said that heterosexuality has an emphasis on the other side of the brain, due to the statistically low percentage of left-handed people among straight people. But it's not a 100% deal.
A better comparison:
Pedophilia is a sexual disorder, like OCD and ADHD are mental disorders.
Homosexuality is a sexual difference, like left-handedness is a brain difference.
Reminder that being left-handed was once considered taboo, too.
And homosexuality was removed from that list because it wasn't a disorder of sexual preference, and pedophilia wasn't because it is a disorder of sexual preference.
Who's the one arguing semantics again? Spoiler: It's you.
That's a circular argument. There really isn't any biological difference between "sexual orientation" and "disorder of sexual preference"; it's only a sociological difference according to the norms and laws of society.
[citation needed]
I already gave you a citation and you started arguing semantics. You don't deserve to have other people doing your own research for you in order to correct your willful ignorance.
Wow. I literally don't need to say anything.