Sexuality in humans is part social stratification and part impulse... Who you have the opportunity to mate with isn't up to you. That's why I don't believe in identity politics. Most of us will learn who is a mating option and favor that over others because we have learned how to woo that particular sex. There is no such thing as biologically gay, it's just nonsense. Most gay people don't pick to be as such they are rejected by women and learn to succeed with men. Once you receive progress along one path of sexuality you will continue along but it doesn't mean it's fixed. I've got "gay" (self-identified) friends who dated women and men, but were wanting the lifestyle of being gay over being straight.
We are humans and need love, sexual stimulation, and communication and we will seek that via whatever avenues we are successful at. If our only option for this positive feedback is the same sex we will seek it, if we can seek it with both we will, and if we are more successful with the opposite sex we'll go there too. This is largely why I think discriminating on sexual orientation is garbage, because our apparent orientation can change at will if we ignore the social ramifications of our peers and their expectations. The rules and the strata are basically worthless garbage for people to self-identify and discriminate between each other with. We will seek our love with whomever we resonate with regardless of these particulars.
This issue has been a dire, painful struggle over the years. Neither being gay or lesbian, I was just uncomfortable trying to be who people said I was, so it seemed clear that I was somewhere along some sort of spectrum, And, people, not knowing what to do simply said I was gay or lesbian, though I had never exhibited any sort of "out of classification" conduct at all. There were hoops, dozens of them to go through to try to dispel the ignorant assessments of the willfully ignorant.
Many, most, or all of us have faced pressure to be this, or not be that, be more masculine, or why don't you wear a dress? Why do we pick at each other like the chickens in the yard attacking one of their own who is different?
Then it was discovered that being Intersex, meant being a bit of both was normal. Of course, stupid asses, STILL wanted conformation to one norm or the other. The worst were the religious. How can they torment someone for something that is not their fault? So, having only God, the only option is to cling to him.
I have to stop. ANGER OFF.