RE: https://www.facebook.com/AdvocateVideo/videos/1443009115780263/
Gender Identity is NOT a social construct. Otherwise, binary transgender people like myself would not suffer intense gender dysphoria since young, and would not NEED to transition, or die. Gender identity is NOT a choice.
There is a BIG difference between gender expression/fashion preference, and innate gender identity due to the way the brain was pre-natally developed in our mother's womb. The distinction is important.
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"Gender ROLES/EXPECTATIONS" and Gender-based EXPRESSIONS and FASHIONS may be a social construct, however, the video lists SPECIFICALLY "Gender Identity" alongside Biological Sex and Sexual Orientation, then moved on to refer to "Gender" as a social construct -- which refers to GENDER IDENTITY. I believe that language matters and the use of correct and PRECISE definitions is crucial to prevent misleading the public into thinking that gender IDENTITY itself is merely a choice and not something that is innate to us all (cis and trans people included -- save for those who are agender).
Also, the gender of a transwoman is woman and the gender of a transman is man. Being trans is not a gender but a physical condition (an intersex condition of the body wrt to the sex of specific parts of my brain dictating gender-identity) -- leading to me feeling this way since adolescence, etc.
See: https://steemit.com/gender/@aeondrift/transgenderism-misalignment-of-sexual-dimorphism-of-specific-portions-of-the-brain-that-determine-s-a-person-s-gender-identity
It is about identity (not expression) -- i.e. a biologically male person who identifies completely as a woman but who may be tom-boyish in personality and/or prefers to wear non-feminine clothing regardless is not a non-binary person by this definition; And is a non-binary person (rather than a trans-gender person) if they do NOT identify completely as a woman or man.
Note: The world "trans" means being opposite of "cis".
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The issue is that Gender Expression (e.g. Gender Non-confirming, Androgynous, etc.) is being incorrectly mixed up with Gender Identity (e.g. an innate sense of self that each of us possesses since birth due to hormonal influence of the brain during its prenatal development in the mother's womb). For the case of transgender people, we experience a persistent sense of gender incongruity since our adolescence age, which eventually cause us to develop intense gender dysphoria and compels us to transitioning.
To me, when it comes specifically to Gender IDENTITY: There's Trans-people (e.g. Gender in direct/stark opposite of our physical Sex), and there are Gender Queer folks (Non-Binary, Agender, Bigender, etc.) somewhere in between the spectrum, and then there are Cis people.