Ah, but I have. You've simply chosen to ignore it, rather than confront it.
(1) The human sexual faculty exists for the purpose of procreation.
(2) The pleasureable nature of sexual intercourse exists to encourage humans to use their sexual faculty to procreate.
(3) Therefore, engaging in sexual intercourse solely for the purpose of pleasure is to mistake cause for effect.
(4) Sodomites engage in deviant sexual intercourse purely for pleasure - their acts biologically cannot result in procreation.
(5) Pedophiles engage in deviant sexual intercourse purely for pleasure - their acts biologically cannot result in procreation.
(6) Both groups therefore share an identical goal: self-gratification in the context of sexual activity devoid of procreative potential.
The very fact that deviant ideologues have produced such an organization as NAMBLA is quite telling, actually - as is the fact that this group openly marches with other sodomy-oriented organizations in national pro-sodomy marches and parades.
BTW, you say that Cameron is "thoroughly discredited". That may be so - but I've never seen a shred of empirical evidence to refute his findings, merely personal comments leveled at him by flamboyant talking heads.
Herek is thoroughly discredited as well - but you cite him anyway, so that's not really the issue. You don't mind the citation of discredited persons, as long as they reassure you in your predilection for sodomy.
Nothing I say will be credited by you because nothing I say will reassure you in that predilection.