According to Corvino, the "Unnaturalness" Charge Can Carry Moral Weight

According to Corvino, the "unnaturalness" charge can carry moral weight only if those who level it can do two things:

A) (i) explain the harms of anal sex and (ii) establish that all homosexuals will inevitably suffer those harms.
B) (i) specify exactly what they mean by "unnaturalness" and (ii) explain why unnaturalness (so defined) matters morally.
C) (i) establish that one's sexual orientation is a matter of choice and (ii) that people who choose homosexuality have an intrinsic desire for self-harm.
D) (i) explain the value of naturalness and (ii) why nothing "unnatural" can be of value.