Shadow Wolf
Certified People sTabber
It's a bit of complicated subject, to put it lightly, but in a nut-shell it can be said the transsexuals fall more within the normal male/female identities, whereas those who consider themselves bigender, identify with neither, or another one of the "alternative" gender identities is where we really start to see the limits of the male/female dichotomy being broken, and where we get a larger view of the role of culture. Transsexuals receive medical treatment to transition because their identity is "one-or-the-other."
But culture cannot give someone gender dysphoria. We know transsexuals have a "transsexual brain" that more resembles their identified sex than their birth sex, as well as some physical differences (such as how Frank has normal male index/ring finger lengths and I have normal female index/ring finger lengths) and even psychological differences (such as how I indicated earlier that I have many traits of Asperger's that are more typical for women than men).
Really, it's something you could easily spend a semester or two researching, and still have plenty left to go over. But, in a nut-shell, transsexuals aren't the ones pushing the cultural boundaries of gender given they identify as either male or female and receive medical treatment to address the condition of gender dysphoria. If they don't identify as such, there may be pains of being limited by a culture that likes to think of roles as being "black or white," but because such a person does not have a conventional male/female identity, they are the ones to look at when it comes to the cultural implications of gender. We transsexuals are really quite mundane in those regards - the only thing "special" about us is we have the brain of one sex and start with the body of the other. It may also interest you to know that many cultures have more than two genders, and these other genders tend to also have male/female roles, but also places for effeminate men, masculine women, those who don't identify as either, and sometimes even a gender/societal role for those we would call transsexual.
