I was not suggesting that homosexuality was inherited per se. I suspect that what happens in the womb is important, so the embryo's brain being influenced by the mother's testosterone-levels or lack thereof might be a factor, among many others. Some studies show that the more children a mother has, the more likely the later offspring will be homosexual. Makes sense if Nature wants to limit the number of children that a mother has, for example. Also, I do not see people being in specific categories, necessarily. For example, there are effeminate heterosexuals and there are also very masculine homosexuals.
That reminds me, there was a study showing that the presence of a homosexual in a family led to the females of that family having more children than the average. Perhaps, subconsciously, the women make up for the homosexual's lack of children(they have c. 1/6 the number of children heterosexuals have, though this seems to be erroneous now that lesbians and gays are finding ways to get round Nature's, ah, "restrictions" in order to have babies). Perhaps having a non-reproducing person in the family also means that that person's resources can be better spent on heterosexual family members who do have children. For example, one of my cousins(the only clever one) got an inheritance from her gay uncle in the form of his house.