Em, think of it this way. You say you're straight so think back to high school, there's a gorgeous girl sitting across the aisle wearing a short skirt, legs crossed, your eyes lock on that little crease on the underside of her knee, and she's randomly moving her foot up and down and doodling in her notebook. You swear those gorgeous legs are glistening, and you catch a whiff of what you think might be the shampoo she used this morning. Obviously, your #### is now a flagpole and you're hoping the bell doesn't ring.
Now you're telling me, a perfectly straight male would CHOOSE not to act on those feelings? The most urgent, primal needs rustling in your loins? A young man thinks about sex every 10 seconds I believe it is. Nope, because it's now "cool" to be gay, he's going to go against his own nature? Can you imagine how nasty, awkward, unnatural and wrong that would feel?
Now imagine you live in the Bible Belt, or really anywhere in this country 20 years ago, when it was decidedly the very opposite of cool to be gay, when you would be ostracized, made fun of, possibly beaten, and been disowned by your family....I mean dude, do you really need this spelled out? How is this not just a fundamental part of human understanding that it needs to be explained? You have to twist logic to a perverse degree to believe anyone would choose that.
Now twist it around...you're living in bizarro world where everyone else (it seems) is gay, and you're sitting there staring at Mary Miniskirt with your raging boner, and you've been told all your life such urges are deviant, inhuman, disgusting. The quarterback asked you to be his date to the prom and you accepted, because you don't want to let your parents down. Can you allow the notion into your brain that that life might lead to self-loathing, a feeling of worthlessness, of being less of a "man" than everyone else? So much so that it leads to suicide in many cases? Are you really, really, so certain that there aren't teenagers right now, just consumed like you were for Mary, but instead for someone of the same sex? At a purely primal, biological level? Because if you aren't absolutely 110% sure, you're supporting what amounts to psychological torture, and in many cases, suicide. Why not just say, you know what, I don't know what's in someone else's heart, but what harm is it doing to me if they want to love Steve instead of Mary? Will Walgreens add an extra deduction to your paystub? Will your textbooks cost more?
I don't know man, I think eventually you're going to wise up on this. You're not a dumb guy.