That's the ignorant thinking of moralistic cultures throughout the ages and even today.
There have always been 'honorary homosexuals' in every culture, every time period and every place throughout humanity. These were just people who were just homosexual and if they were tolerated because of one cultural, religious or historical reason, they just came up with a tradition to keep them around. The practice didn't happen because there no women around, the practice happened because there was always going to be some individuals who would identify in different ways.
I'm indigenous Canadian and I grew up in a fairly traditional culture. My first language is Ojibway-Cree and I grew up around a lot of Elders who were all born in the wilderness. There were always a handful of people in our circles who identified differently from everyone else. Even our Elders knew this and they didn't anything unusual about it all ... it's just how people are and we were all taught and saw that it was just a normal part of humanity.
It was only when everyone started talking about it all in terms of Christianity or some modern religious morality that it became a problem.
In our modern world .... There is nothing wrong with an individual's sexual identity .... There is something wrong with how we all see an individual's sexual identity.