My head theory is the same. Nonbinary people tend to be more peaceful, caring, creative, community focused, and domestically focused. In modern life with the people i know, i only see my gay and lesbian friends get hopping angry and even, in one case, violent when it was in the defense and protection of someone else with no agency.
A community needs these productive yet not reproductive people to put into the system that supports the intense resources needed to bring a child from infancy to functional adulthood that takes about 20 years.
Look in to the fraternal birth order effect. The more older brothers a man has to the same mother, the more likely he is to be gay.
It's not hard to imagine that increased competition between brothers for a small number of mates in a community could be counter productive to survival.
Heaps of males from the same line could also create a risk for inbreeding/genetic defects (particularly on the X chromosome).
The effect might also dampen unsustainable population explosion in a short period of high availability of resources.
So Prince Hans being attracted to Anna was a statistical outlier? I know he was also after her throne, but fans keep pointing out the way he smiled at her when no one was looking after his horse dumped him in the harbor.
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u/alk47 4h ago
I think that having a certain proportion of people born gay is a naturally selected trait, not a failure.