Re: the reflections on the provenance and nature of "gender", my perspective - which I think has been expressed in different ways by different people upthread - is that it's become a catch-all term for a multitude of facets of, I guess, the human condition.
I'm in no doubt that gender dysphoria exists - I think any suggestion that it doesn't would be akin to questioning the fundamental validity of being gay or lesbian - and also feel that, because of its implications, the input of medical experts, including those in mental health, should be necessary as a prelude to undergoing any physical interventions, eg. to guard against co-morbidities / diagnostic over-shadowing / underlying factors. Ironically, I think the current ideology, in advocating for a smoother and shorter pathway to physical transition, has made this interim process more important than ever before.
This is because gender dysphoria as a "condition" has become melded with "gender" in the public consciousness, when, in fact, concepts of gender in itself surely derive from the impossibly complex interplay of an almost infinite number of different areas and issues, both internal and external. All of the following could, I'd assume, could shape an individual's thoughts and feelings on "their" gender in the current, confused context: sex, age, mental health, physical health, education, intelligence (difficult to acknowledge, but must be acknowledged as relevant, I think), upbringing, community, society, culture, personality, beliefs, values, needs, ulterior motivations (sad but inevitably true)...
Most of the items in the list above are, themselves, inadequate as descriptions of a multitude of different considerations. Within the category of sex, each individual has a complex relationship with their sexed body; for age, just to focus on puberty, each individual responds differently, if within overall identifiable trends; mental health encompasses an infinity of different states, many (most?) not fully understood, and diagnosis sometimes a matter of degree etc. And each of these interacts in highly complex ways with external influences, of course.
And these external influences also include large-scale capitalist and political forces.
We like - need - to categorise, and "gender identity" offers a neat way for individuals to feel they are managing what may, in fact, be a multitude of complex issues, by reducing these down to a word, an identity, and an answer. I think we may see the same instinct in identity politics more generally, for example, in so-called hierarchies of oppression which disregard the sheer, impossible complexity of reality. It's partly the product of po-mo theorising - language and meaning as fundamentally slippery and utterly subjective - being, paradoxically, marketed (pun intended) as an easy answer to a multitude of barely-defined questions.
This doesn't negate the validity of "gender" as a (malleable but very real and important) concept to many, many people. But it does, surely, raise serious questions about it being used as a foundation for reorganising our society and re-writing our laws.
I just read this - Wittgenstein (apparently!) said, “Philosophy is a battle against the bewitchment of our intelligence by means of language”. I may be quoting it entirely out-of-context, but, in its own right, it seems relevant here. "Gender" as a word is bloody complex, and there's a resistance to acknowledging this that is actively dangerous.
(Hence the fabness of this thread - thank you again, everyone).