Imagine. Just, go out on a limb here, imagine, you've lived 20 years of your life as a guy. You've got a nice body, a penis and everything, but you keep catching your parents forget themselves and you know you're the unwanted BOY child out of two. They wanted a girl. They had your girl name all figured out, your clothes and room and everything, but because ultrasound scans back when you were born were ultra-expensive shit amd ultra-inaccurate, nobody actually knew if it's going to be a boy. Everyone (doctors of all kinds that do pre-natal care) kept telling your parents how it's going to be a girl and in the end, they pulled a screaming infant male baby out of your moms vagina.
And then, at about 20, you come into an age of self-identification and start wondering, should I actually be a girl? Does the whole philosophical point of your parents badly wanting a girl have had an effect on your genealogy and had made you somewhat less than a normal guy? And then you discover internet. Where you can be whatever you want to be. Superman, bat-shit crazy, forum troll who posted "America had it coming" after 9/11 or just someone who isn't sure of what he's supposed to be. Especially when you find out that women aren't the only thing that attract you. Sure, you have fun poking them with your joystick, but there's an itch that has to be scratched. You also talk to other people with similar "problems" and find out they aren't insurmountable. There's all kinds of treatments and help avaliable for people with gender identification issues. In some cases, you get helped become what you're supposed to be. Gender re-assingnment surgery included.