Oh, please. "He's smart but he's stupid."
No. He's religious, and is building what he deems as a rational argument in favour of his religious conviction. I'm no believer myself, but I can understand that.
What he deems as a rational argument. Not an actually rational argument. "Fifteen-year-olds do it, so it's immature, so it's bad, so we shouldn't let adults do it" is not a rational argument.
Yeah, I'm afraid I didn't use your paraphrasing to form an opinion on the piece. I understand you're angry with him and passionate about the matter, but you did obscure his argument somewhat.
The average fifteen-year old teenage boy is genetically predisposed to copulate with anything that moves. We are compassionate and forgiving of those who cannot resist this temptation, but we do not regard as adult anyone who has not overcome it; and we can only help others overcome these "genetic predispositions" by teaching them that we expect them to meet a higher standard of behavior than the one their own body teaches them.
Does not mean
"Fifteen-year-olds do it, so it's immature, so it's bad, so we shouldn't let adults do it"
Rather, it means that those who can not control their own body urges are not adults, and that the rule of the body is not the rule of the man. This quote is in the context of homosexuals wanting to be Latter Day Saints and still practice homosexuality. He is saying that, like the unmarried, these should not indulge in frowned upon sexual acts - they should show the sexual restraint required of adults, and defeat genetic predisposition much as the unmarried should.
This is perfectly rational, based upon Church law and the fact that adults should be able to exercise control over bodily urges.