First of all, I definitely appreciate your response and being more direct. It makes it much easier for me to understand where you coming from.
I think it's true that adolescents can experiment with various kinds of identities, not all of them healthy.
It seems like you are judging homosexuality based on some exaggerated stereotype, which I don't think is terribly different than judging heterosexuality by what's portrayed on "The Jersey Shore" (a reality TV show) or by people involved in the "swinging" lifestyle (heck, they actively recruit!).
Granted, I can't say that people are never forced into homosexuality (my personal experience is limited), but you seem to think it happens often enough to outweigh other concerns. I get a real sense of you finding homosexuality to be actively predatory by nature, and wonder where that is coming from. I sort of wish you could see all the boring, prosaic examples of "gay lifestyles" that I've seen. People living those kind of lives probably aren't the most visible or loudest, but they do exist and I suspect are the majority of the LGBT population.
I think someone confused about their sexuality should be given space to think about it, neither rushed into trying things, nor stomped upon because they might not be heterosexual. Just talking to someone about any "homosexual urges" takes a lot of courage.
I certainly wouldn't brand anyone who stated that an overwhelming majority of people are heterosexual as a bigot. And for a kid being a heterosexual is a reasonable thing to expect (seeing as you'll be right 90+% of the time). Still, that's different from making homosexuality a reason for social condemnation and ostracism, or thinking that such treatment is somehow necessary for the mental health of heterosexuals.
It seems like on the one hand you are saying that your sexuality is fixed and has never been vulnerable (and I believe you, my experience of my own is the same). Yet you seem to feel like other heterosexuals are incredibly vulnerable to the predations of homosexuals and can be easily swayed toward being homosexual.
It seems like you are saying it's better to cause a lot of distress to a minority, rather than some minor uncertainty to a majority.
And "Little Britain" is all about taking stereotypes to ridiculous lengths. I don't think they'd argue that every person is a wheel chair is faking it (do you?), or every woman who assists people from behind a computer is hilariously unhelpful. Plus, since one of the duo is gay himself, I doubt he trying to critique homosexuality in general, just lampooning some ridiculous aspects of a subculture.
Some books do present as fact the results of studies that are dated, were never peer reviewed and/or were flawed in design. Others make claims that homosexuality can always be "cured," and that it is always the result of trauma or other psychological issues. I can see how those kinds of things would make people angry who bear the brunt of that kind of thinking.
Still, I doubt that online posters represent a balanced cross section of any population. If I had to judge the human race by youtube comments, I would have no hope whatsoever for humanity in any respect.
So, my overall sense is that your interactions with gay people personally haven't been particularly positive, and the gay politicians and activists you've heard only confirmed your impressions, plus they hit some area of political irritation as well. None of that helped you get over your initial feeling of unease that is only natural when confronted with something foreign. I'm sorry if that's the case. All I can ask is that you keep an open mind, and allow for the possibility that the examples you've seen aren't necessarily indicative of LGBT people as a whole. Most of us just want to live our lives, settle down with the right person, and not have to sacrifice other aspects of our life to do so. Doesn't seem unreasonable from my end.