Sexual orientation is not a choice

I'm new to debate.org, so forgive me if I make a mistake in this process. I've made multiple attempts to argue this point in person and have come unsuccessful. I have yet to hear an argument supporting that sexuality is a choice, despite my efforts. The closest I've heard has been "sexual orientation may not be a choice, but homosexual actions certainly are". I'm not trying to debate this, I'm talking about strictly sexual orientation. Considering this is a website specifically for debating, I'm assuming I will get some responses and I'm excited for it. Onto my arguments: 1. To fellow heterosexuals: When did we choose to be straight? I know, this is an extremely cliche argument and I'm sure you've all heard it. But I certainly don't remember making a decision about it. I don't think I could choose to be homosexual if I tried. When thinking of sleeping with another guy, I feel nothing but discomfort. I guess it's like trying to explain why I don't like deviled eggs. I just don't, and I can't choose to like deviled eggs. 2. There's no reason to choose homosexuality You could make the argument that it's a rebellion thing, and I'll get to that later. Let's look at all the downsides society has caused to homosexuality. Bullying, discrimination, and persecution are just a few example of what many homosexuals have to endure everyday (at least where I live, in the bible belt). Consider the case of Carlos Vigil, a 17 year old homosexual high-schooler. He took his own life after the bullying became unbearable, all because of his sexual orientation. If it's a choice, he could have just switched back, right? Before it got really bad, he could have bailed out of homosexuality while he had the chance, right? If so, why didn't he take that chance? I would think just about every homosexual in this scenario would become heterosexual, yet they don't. Why? Because they can't. They are who they are. In my school, there are two homosexual men, both very religious. Hell, on their Instagram bio they both claim "God is everything". It goes without saying that they know they are sinning, and in their own religious book, it claims that their god "hates homosexuals". These people believe they will spend an eternity suffering for the way they live, yet they don't change it. If sexuality were as easy to change as many claim, why don't they? For these reasons, I do not believe homosexuality is a way to rebel (at least not in 99.9% of cases). I don't think anybody would rebel to the point where they spend an eternity suffering, or rebel to the point where they commit suicide. 3. Homosexual stereotypes Yes, I know nowadays the default notion of stereotypes is they're hurtful and false, but I think most would agree that stereotypes come from somewhere. Many, if not the majority of open homosexuals (to my personal observations) abide to the stereotype, which involves being feminine, a higher pitched voice, a lisp (I'm not sure why this is true, but it seems to be), dramatic, extreme hand motions, etc. Obviously not all homosexuals fit this stereotype, and I'm expecting to take heat for these statements, but we all know that's the stereotype. Growing up, we all knew who the gays were, far before they came out. When they finally did, nobody was surprised. Why? Because they acted gay for years, yet they didn't want people to know. It makes sense that they act gay even when others don't know that they're gay, because that's just the way they are. I grew up with a kid who was always feminine. Our parents were friends, so I would play at his house a lot. Even before kindergarten, he played with Barbies instead of soldiers, and glittery horses instead of dragons. The games he wanted to play were foreign to me. I remember specifically "Boy by the River". He played as the girl and made my brother play as his boyfriend while I was the boy by the river. All he would do is break up with my brother and become my girlfriend (We hated this game). I always knew he was different, and he was obviously way too young to make a choice of his sexuality, but he was obviously homosexual. Fast forward 10 years, after going about that time without seeing him, he goes into my dads office and asks him to donate to his dance crew. Come to find out...he was gay. Homosexuals don't begin showing these stereotypes to make a point, that's just the way they are. 4. It happens Short point... Over 1500 species of animals have been witnessed engaging in homosexual behaviors. The society of these animals aren't advanced to the point where they need to show off to their friends or they want to rebel to their parents. It shows that it's perfectly natural to be gay, it's just uncommon. I'm sure I'm missing something, but it'll come to me at some point throughout the debate. Again, correct me if I made a mistake. Thanks!