from a functional standpoint, I believe that weru to have an honest, objective look downards, u would have to conclude that u were either born a man or a woman in 99.99% of cases and that ur equipment is a functional counterpart to the equipment belonging to the opposing sex. The choice u make with regards to who or what u decide to have sexual relations with is largely determined by parent gender roles, society, religion or maybe the type of porn you stumbled on at a very impressionable age or what kind of sexual activity was thrust on you at the same stage. I have read studies done (google it) about sexual play among siblings that has reinforced this view. In short, unattended children know that certain sensations o certai areas produce a favourable sensation, regardless of which gender is engaged, yet thanks to parental gender roles, society and certain oedipus/elektra issues go on to pursue an ideal mate of the opposite sex. Conclusion: you were born this way alrite, you were born with a dick or a pussy and you got handed different manuals.
It's definitely a complex issue...but what you're stating as fact is quite confusing. Are you saying, to clarify, that your gender role and what gender you prefer to rub against is based on whether you were left alone to rub one out, while having either two parents of same sex, different sexes, or a single parent, of which sex...religion, what's on tv, what you're exposed to at a young age....right? If that's what you're saying....how would your theory account for all those who knew they were 'gay' at a very young age, regardless of whether they grew up in a religious family, or a family with both parents of opposite sex...?
I was at a very young age when I realized I really liked girls, and really had no influence at that age to make that choice...there was no 'choice', it just was a fact of my exisitence, much like if you realized that you liked men and were 'gay'....there was no superhero or hockeyplayer that convinced me to be hetero...I just am. As my gay friends are just that....gay. Or Lesbian...whatever...you know where I'm going with that.
What you've proposed is not really how it works, and though the influences we experienced in our early childhoods can and do change the courses we follow in our lives, it just kinda happens like your eye colour or tone of your skin, whether you have a dick or pussy, as you say...
BTW, Miss Melody...you were right, I oughta lighten up. Yo Momma!