So... exactly my point? Having a Y chromosome means you are a male.
It means you are born with testes. There are 22 other pairs of chromosomes determining the rest you besides sex and that can include being transgender. Biologically speaking, we are far more than one pair of chromosomes and our traditional social classification of what genitals that pair gives you.
The 22 other chromosomes determine the rest of your body. The sex chromosomes determine sex. I agree that we are far more than our genetalia, but our sex isnt.
Gender, typically described in terms of masculinity and femininity, is a social construction that varies across different cultures and over time. (6) There are a number of cultures, for example, in which greater gender diversity exists and sex and gender are not always neatly divided along binary lines such as male and female or homosexual and heterosexual. The Berdache in North America, the faafafine (Samoan for the way of a woman) in the Pacific, and the kathoey in Thailand are all examples of different gender categories that differ from the traditional Western division of people into males and females. Further, among certain North American native communities, gender is seen more in terms of a continuum than categories, with special acknowledgement of two-spirited people who encompass both masculine and feminine qualities and characteristics. It is apparent, then, that different cultures have taken different approaches to creating gender distinctions, with more or less recognition of fluidity and complexity of gender.
How does that relate to the point I am trying to make? Im talking about sex, not gender.
Genetically Determined Disorders of Sexual Differentiation Typical sexual development is the result of numerous genes, and mutation in any of these genes can result in partial or complete failure of sex differentiation. These include mutations or structural anomalies of the SRY region on the Y chromosome resulting in XY gonadal dysgenesis, XX males, or XY females; defects of androgen biosynthesis or androgen receptors, and others.