Apart from sexuality, there is no difference between homosexuals and any other orientation. The claim made says that there is a difference apart from sexuality and I would like to see it.
Not so fast.
Until recently, the state of the question was in the realm of conjecture and your stance might have been plausible. Recently, the physical studies having been showing clear indications that the facts are otherwise. Therefore, in all charity, we ought to assume that there is at least a real possibility that there is a clear difference between homosexuals and other orientations with regards to parts of the body not directly involved in sexual expression or reproduction. We don’t have to be convinced by the data, but we ought to at least be open ot the possibility that objective differences exist and that those who believe this are not being lead by anything other than the known facts.
From What the Gay Brain Looks Like (Time Science)
"What makes people gay? Biologists may never get a complete answer to that question, but researchers in Sweden have found one more sign that the answer lies in the structure of the brain.
"Scientists at the Karolinska Institute studied brain scans of 90 gay and straight men and women, and found that the size of the two symmetrical halves of the brains of gay men more closely resembled those of straight women than they did straight men. In heterosexual women, the two halves of the brain are more or less the same size. In heterosexual men, the right hemisphere is slightly larger. Scans of the brains of gay men in the study, however, showed that their hemispheres were relatively symmetrical, like those of straight women, while the brains of homosexual women were asymmetrical like those of straight men. The number of nerves connecting the two sides of the brains of gay men were also more like the number in heterosexual women than in straight men.
"Just what these brain differences mean is still not clear… "
"
The Swedish study, however, is the first to find differences in parts of the brain not normally involved in reproduction — the denser network of nerve connections, for example, was found in the amygdala, known as the emotional center of the brain. “The big question has always been, if the brains of gay men are different, or feminized, as earlier research suggests,” says Dr. Eric Vilain, professor of human genetics at University of California Los Angeles, “then is it just limited to sexual preference or are there other regions that are gender atypical in gay males? For the first time, in this study it looks like there are regions of the brain not directly involved in sexuality that seem to be feminized in gay males.”…
Read more:
time.com/time/health/article/0,8599,1815538,00.html#ixzz1VW2TJ51V
Mind you, this does not mean that every male who has seen fit to engage in homosexual acts has the sort of brain referred to in the study. It is certainly possible for a heterosexual man or woman to choose to engage in homosexual acts or homosexual romantic relationships, and even to choose them at the expense of heterosexual relationships. This would seem to have been very likely in cultures such as in ancient Greece, for instance.
IOW, some people who have self-identified as gays may indeed be heterosexuals who could have acted out as homosexuals for reasons not rooted in their personal biological make-up. A day may come when the difference will be visible to science.