5/13/2013 An article was posted at http://www.hollanddavis.com/?p=3647 which claimed Identical Twin Studies Prove Homosexuality Is Not Genetic.
Eight major studies of identical twins in Australia, the U.S., and Scandinavia during the last 2 decades all arrive at the same conclusion: gays were not born that way. At best genetics is a minor factor, says Dr. Neil Whitehead, PhD. Whitehead worked for the New Zealand government as a scientific researcher for 24 years, then spent 4 years working for the United Nations and International Atomic Energy Agency. Most recently, he serves as a consultant to Japanese universities about the effects of radiation exposure. His PhD is in biochemistry and statistics.
Identical twins have the same genes or DNA. They are nurtured in equal prenatal conditions. If homosexuality is caused by genetics or prenatal conditions and 1 twin is gay, the co-twin should also be gay. Because they have identical DNA, it ought to be 100%, Dr. Whitehead notes. But the studies reveal something else. If an identical twin has same-sex attraction the chances the co-twin has it are only about 11% for men and 14% for women.
Because identical twins are always genetically identical, homosexuality cannot be genetically dictated. No-one is born gay, he notes. The predominant things that create homosexuality in one identical twin and not in the other have to be post-birth factors. ...
As a teen I read The Rise and Fall of the Third Reich in which the author dwells briefly on the vile and brazen homosexual practices among the Nazis. It seemed that it was common knowledge at one time.
Many decades later, the testimony of eyewitnesses has been entirely dismissed, the report demoted to the level of a bizarre allegation and a book that exposes it is considered "controversial" even though it is heavily footnoted.
This is progressive revision of history. I choose to remember.
Homosexuality doesn’t appear to be genetic, as your studies point out. It seems to be a brain response - like flipping or not flipping a switch - to either hormones or plastics in a woman’s (the mother’s) womb. That is the best we’ve got right now.