Sebastian Zearing

how to be progressive without being a stupid liberal

Tag Archives: genotype

Sexuality, androphilia, gynephilia, and gay genes

Edit 28 July 2015: This post argues that strong social pressures are the primary reason homosexuality occurs with such high frequency (vs. ~0%). Though I do not rescind the claim of social pressure affecting rates of homosexuality, I do now believe that the intrinsic noisiness involved in differentiating the androphilic brain from the gynephilic brain in the developing human is probably the greater causal factor in the high rates of homosexuality. A better treatment can be found here.

I hang out at Lion/halfsigma’s blog occasionally, and something he posted yesterday caught my eye. You can read it yourself, but the post was about Obama’s recent call to end conversion therapies for LBGT youth. I won’t comment on that topic itself, other than to note I don’t see anything wrong with governments banning unproven/disproven/known deleterious medical interventions, particularly in youth where consent is squishy. Instead, I want to comment on the responses to his post, in particular JayMan’s comment and hyperlinked post about the topic of the causes of homosexuality. I wrote a reply there, but I want to make a post for my own blog on the topic.

The first thing I want to very forcefully clarify on this topic is that sexuality is patently and obviously genetic. Whether or not you have a Y-chromosome predicts with around 93~98% accuracy whether you find women or men sexually attractive. Almost all the people that have the specifically genetic entity known as the Y-chromosome are sexually attracted to women, and almost all the people that do not have that genetic entity are sexually attracted to men.

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