This is actually a more modern view on it. Just 1800 years ago 2 men was completely acceptable and in some cases encouraged, while 2 women was explicitly forbidden as women don't have a sexual desire, are clean and innocent, andhave the sole purpose of pleasing men. As such, lesbian sex was a blasphemy. Despite this, there's several poems and letters found from this era between women and about lesbianism.
Hell, the Mayan and Aztec temples had male prostitutes which the more important people were free to use as desired. And in earlier cultures homosexuals, eunuches, transvestites etc. had a high religious importance, and were often the religious leader, as they were considered possessing both the male and the female, and as such had the perfect balance and were considered as having the best contact and insight in to the spirit world/spirits/ancestors/whatever.
Or perhaps religious leaders often become homosexual in order to achieve a greater balance (I'm looking at you catholic priests).
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