In my “Rams in the Thicket” post I predicted that the “it’s in my genes, I can’t help it” argument could eventually backfire due to advances in understanding of the biological underpinnings of homosexuality. What happens, I wondered, when we learn enough about biology to change sexual orientation, or at least to ensure heterosexuality and prevent homosexuality from emerging? (For those who think it’s a non sequitur to claim that homosexuality is not biologically caused (for the most part) but heterosexuality can be, see my previous discussion of this apparent paradox called “Born Straight?”.)
That day may be closer than I thought. John Tierney, a New York Times science writer with a strong libertarian streak quotes a researcher who has successfully altered sexual orientation in fruit flies as saying it is not a question of if but when that we will be able to turn human heterosexuality on and off. (Note that Tierney seems to understand the important but subtle difference between biologically based heterosexuality and the more contingent emergence of homosexuality himself, as his post is titled “Turning Heterosexuality On and Off”)