Arguing Further

The other main argument that I plan to use to support the genetic predisposition for homosexuality is that of its prevalence in other animals. I plan to discuss how there are documented studies that show the sexual preference of some animals to be homosexual, based not on availability of opposite-gender mates, but on some drive that moves these animals to partner up with animals of the same gender. This, while being a strong argument in and of itself, will refute the argument of homosexuality as a personal lifestyle choice, as many of the studies animals lack the capacity to make such choices.
As a whole, the opposing argument is rather strong, but highly circumstantial. It deals mostly with the familial relationships gay individuals have as a child, and points to them as the cause of homosexuality. However, many of these ideas are easily cast aside as effects of, rather than causes of, homosexuality. For example, a common belief among the 'nurture' camp says that a distant father can attribute to a son's homosexuality. However, the inverse could just as easily be true: a son's homosexual tendencies drive a father away from him, making him more distant. These arguments, too, are usually based largely on memory, and are therefore highly inaccurate and imprecise.