P.S. There's clearly a difference.
I'm sure you've convinced yourself that there is.
So can the argument of psychological abnormality (in regards to partaking in incestuous relationships) be juxtapose with that of homosexuality?
It can, but that argument was rejected almost 40 yrs ago, made official with the publication of DSM III. It would be interesting to see if Asylumseeker can substantiate his claims that incest is the product of some mental disorder. Not that I'm holding my breath.
I. WHAT THE PERSON GETS FROM THE RELATIONSHIP
Regarding your first comment, no need to deflect without responding substantively.
It's a tempting proposition. It's also esoteric. I KNOW why you've stated there's no difference (hence the P.S.). And, likely it's your training that's resulted in that conclusion. Mine almost led me down that road. In a different arena, I might contend the same thing. However, upon reflection, at the core there is a QUALITATIVE difference between bargaining for the consideration of emotional comfort or reciprocated emotion versus the bargain of an action guided by commercial incentive. For one, one is rationalized action and the other is not.
Or, positing a different definition of rationality (as you've used previously on the forum), the bargain of emotional gain is the product of a different rationality quotient. Therefore, given that the bases of the bargains are different, both 'things' are 'different'.
II. GENETICS, PSYCHOLOGY OR PSYCHIATRY?
My stance is consistent. I have not during the course of this exchange engaged a linkage of homosexual conduct and incest. Consequently, not having linked the two, I have no interest in doing so now even via a consideration of mental disorder (as would be convenient). I hold this view not solely because I'm aware of the medical profession's pronouncements, but because incest and homosexual conduct are in the main distinguishable on genetic grounds.
Therefore, while my exploration engaged incest vis-a-vis proper mental capacity, I did not pursue that line of reasoning in the context of homosexual conduct. I wouldn't be surprised if someone on the forum does, but I'm adopting the position that that is not a profitable approach.
[I had not gotten around to it yet, but I suppose this is as good a place as any to state that I planned to address Zandolie's mention of "homosexual incest". It was a noteworthy observation. However, I'm surprised that you (Bakes) didn't engage Zando on the concept from a legal construction because historically the law has not defined incest to include homosexual conduct ... thus, technically there was no such thing?]
III. INCEST AS MENTAL DISORDER
Could courts posit something akin to a legal fiction to get there? It may be more useful to respond to that part of the discussion with the relevant quotes.