Because identical twins are always genetically identical, homosexuality cannot be genetically dictated. Women showed a statistically non-significant trend to weaker influence of hereditary effects, while men showed no effect of shared environmental effects. There are no advantages that I can think of that make it advantageous to be gay, so why would anyone choose it? What I find fascinating about counterknowledge is that its raw material — conspiracy theories, urban myth, fake history and fake science — spreads from one marginalised community to another, even though those communities may despise each other. The analogy on the twins study presented is ludicrous unless identical twins should also have identical fingerprints.
They love to play the trump card that studies and science prove this and that, where knowledgeable and close examination of their references proves otherwise.
Homosexual orientation in twins: a report on 61 pairs and three triplet sets.
Starting the day right involves a hearty, healthy breakfast. Self reported zygositysexual attraction, fantasy and behaviours were assessed by questionnaire and zygosity was serologically checked when in doubt. Yes, I do know the difference. Most changes in sexual orientation are towards exclusive heterosexuality. Are our breakfast cereals and "fortified" loaves as healthy as we like to think? The first group comprised 19 gay men who had died of AIDS -related illnesses. How is this possible, if human sexual orientation is genetically hard-wired and immutable?