A combination of one or two "gay genes" could very easily define a predisposition towards homosexuality. It would then be possible to define a person not as gay or straight but as relatively gayer or straighter than the population. People on either extreme would hard-pressed to choose the opposite of their natural inclination. People closer towards the middle would be more fluid in their attractions and choice of partners.
There are straights with one or two past homosexual experiences who go on to marry and raise a family. These might be people who are mostly straight, but near enough to the boundry that a cross-over isn't unthinkable.
Conversly there are individuals gay of center who try to follow conventional norms, marry, and have a family only to later realize that they are morbidly unhappy in a hetero lifestyle. Hard to escape the fact that homosexuals are absolutely always procreated heterosexually.
Not really; it's basic genetics. Remember high school biology class? There are two allels for every gene. If there is a gay gene, and if it is recessive (a reasonable assumption), you will never be able to "breed it out of existence" because a person with the Gay/Straight combination will be indistinguishable from a Straight/Straight individual, but will be a "carrier" for homosexual tendencies.
Disclaimer: All of the above is conjecture and hypothesis on my part, but it does seem to fit the annecdotal facts and observations.
You're thinking too hard. Remember my comment?
"Hard to escape the fact that homosexuals are absolutely always procreated heterosexually."
Tha means a man boinked a woman, a sperm met the egg. Sperm don't fertilize sperm and ova don't fertilize ova.
The problem is genes regulate body form and not behavior. Theres no such thing as predisposition to behavior, except in the minds of liberal apologists that call alcoholism a disease and homosexuality an orientation. The practice of homosexuality is a paraphilia and should be seen as the pathology that it is. With your logic I guess there are incest genes, bestiality genes and pedophile genes too!
Disclaimer: All of the above is conjecture and hypothesis on my part, but it does seem to fit the anecdotal facts and observations.
Justifying perversion requires a lot of mental aerobics.