Michael-5 said: What about random mutations? A lot of disorders are cause by random mutations which affect the population as a whole, and have nothing to do with inherit traits.
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Did you read what I posted? I didn't disregard biological explanations altogether. I said I don't believe they happen in most people.
Also, pay close attention to the following:
"There probably aren't any definitive evinronmental factors that for sure causes certain sexual preference though. Considering how complicated and bizarre the human mind is, I'm pretty sure the cause of sexual preference is also complicated and perhaps bizarre."
I never said gay parents would likely raise gay children. A child's environment is much more complicated than that. Parents make up a very small component of a child's overall environment. There are hundreds of other significant complex factors which all have different affects on different people.
You're actually helping to prove my point with that twin study. If there are two identical twins, one as homosexual and one that's heterosexual, obviously that shows that biology wasn't a major cause. Rather, they developed into their preference as they aged.
The reason I don't like the biological explanation is because people don't even have an understanding of gender until after birth. Likewise, I don't see how people would already have sexual preference before they can even understand the difference in genders. How does that work? Have you ever seen a 1 year old showing any homosexual or heterosexual tendencies? No, chances are they don't have any sexual preference yet.