[quote="rossum, post:3, topic:332457"]
Blue eyes and left handedness also apply to a small fraction of the human population, as does being Icelandic. Merely being in a minority does not make something a perversion.
A great many different things are "in conformity with the natural order," some good some bad. We can find excellent care of the young in nature and we can find complete neglect of the young in nature. We can find faithfulness in a pair bond and we can find promiscuity. Some species even have the female eat the male after he has fertilised her eggs. Both homosexuality and heterosexuality occur in nature. Merely because something occurs as part of the "natural order" does not make it either good or bad. We can observe both so we cannot draw conclusions.
Blue eyes and left handedness are not willed occurrences and do not have anything to do with behavior.
The thread title and the OP raised for discussion homosexuality as a perversion. Perversion is associated with behavior and the element of will in humans, with will (and sense of right and wrong) not manifest in other species. Studies of same sex animal pairing displaying supposed signs of homosexual behavior are suspect, largely touted as "evidence" of its naturalness, setting aside socialization and need for dominance as explanation.
Incidentally, "homosexual" behavior in bonobos is accordingly the closest to human homosexuality; yet, there is no evidence or recorded observation that they (male and male bonobos, or female and female bonobos) perform the homosexual act to completion.