Bringing this up because it came up in another topic. I have only one rule. Absolutely NO bashing anybody of the LGBT community (this doesn't include the sin of homosexuality itself) as this isn't what this discussion is about. Me personally, I think sexual preferences are a choice since I chose not to be a creep and attracted to children or animals, but feel free to discuss. (Oh and for the record obviously you choose to be Transgender.)
Myself I can offer anecdotal comments only. That being said, our family has much experience with this question. Most recently, a niece of mine—a beautiful twenty-one year-old half-Egyptian girl, received an ultimatum from her longtime boyfriend: break up with me and I'll
turn gay. Well, break up with him she did. A few weeks later he was dating a guy.
In my family an uncle, an aunt and a cousin are gay—have been for decades. The uncle used to date women up into his thirties, he's sixty-one now, but came out around age thirty-two and stayed in a relationship a guy for twenty years. Since then he's been seeing guy after guy, all of them much younger but over age twenty-one. Stories of his childhood vary depending on who one asks, but the consensus seems to be he was genuinely interested in women at some point in his life. Who knows what happened to change his preference. Either way, he's always been a great uncle although he went totally flaming in his later years.
The aunt married my biological uncle, had two children with him, stayed with him for twelve years and then ran out on him for another woman all of sudden, leaving my two young cousins without a mother for about three years before coming out to the rest of the family. Both cousins suffered greatly in her absence and her son eventually claimed to be gay as well and has been with men since about age nineteen. That aunt's brother is also gay, as are a few other men in her family.
Drawing simply from personal experience, I've always concluded people
choose their sexual preference due to some great upheaval or realization or influence in their lives. I do not believe people are born gay. However, as mentioned, that's what I believe based on personal interactions with gay people, most of whom I am related to, some of whom I have known since (my) earliest memories.
