So no, it's not "feminine type people" who are oppressed by "masculine type people". If that was the case we could all just identify out of being oppressed by adopting masculine stereotypes.
What I was really talking about here is if gender did fracture into a thousand pieces then would hierachy still emerge both based on sex at birth and gender - I think it would, the Hijra for example often see themselves as a third gender (although some see themselves as trans and some as both). They are clearly discriminated against on the basis of their gender, often forced into survival sex work for example. I don't really think it's either or, but that people can be discriminated against on the basis of both sex and gender. Obviously women are discriminated against on the basis of reproductive potential, but women are also oppressed based on gender, as are trans woman - there is a shared struggle there, primarily against male violence and male sexual violence which is undeniable I think.
@RadandMad
I don't disagree that no-one born male can fully understand the discrimination women go through relating to child birth (and other physical aspects), but that experience is not univeral to all women - roughly around 25% of women in the UK never have children - some women can't, many don't want to - I don't think this makes them imperfect women (which some in society do hence Wittig's comments about not being a woman because she is a lesbian), or women who don't experience discrimination. There are other forms of oppression based on gender, such as sexual abuse, which can be life shattering for example and in our day to day existence sexism plays out in insidious ways even down to people making assumptions based on our names when they may have never even met us or know what sex we were born.
There is no universal experience of womanhood, or manhood for that matter. No white woman in the west can know what it's like for a woman in Saudi Arabia, no middle class white man can truly understand what it like for a black kid growing up in the ghettos on the US, there are commonalities between both but also massive differences which are just as life defining as a shared experience of our physically sexed bodies.
I wonder whether so many male-born people would feel the need to publicly identify as women if the old, blindingly obvious disadvantages of being female were still in place.
They did, trans people have always existed but often in the shadows because being publically trans might result in violence or arrest. But there is a huge trans community in Pakistan for example, where women's rights have a long way to go. It's not something people choose to be, it's something that people are - why that is I do not know, I suspect a range of both biological and social forces, but trans people have existed in some form in all kinds of diverse societies from the Hijra in India, to the Travesti in South America, the Khatoey of Thailand, the two-spirit people of native american descent, - there are ample historical and cultural expressions of gender which go beyond the western patriarchal norms of men acting as men and women acting as women.
(And a side note on "oppression". That word has a specific meaning - systematic abuse, exploitation and injustice - which is in my view applicable only to inequality suffered on the basis of race, sex and class. So I do not accept that when feminine males are discriminated against this amounts to oppression.)
I note you only consider oppression applies to the characteristics that apply to you but I'm sorry, if you don't think oppression can exist based on sexuality, gender identity, disability, or religion, then I don't really know what to say except you're simply wrong. It was illegal to be gay for many years, and by de facto virtually illegal to be trans - it still is in some parts of the world, to the point of being punishable by death, if thats not oppression then I dont really know what is.