beachcomber, there is an awful lot of food for thought in your posts, so I am just going to ask about a couple of points.
I always understood the concept of agency, as regards feminism, to be the idea that women were not just passive victims of patriarchy or oppression, but that they employ strategies, resistance and challenges within a context of male domination. It is a concept which developed with third wave feminism. It may have been exploited by neoliberalism, but it has feminist roots, it wasn't foisted on female writers and commentators.
The issue with agency is as you suggest whether internal strategising and resistance is empowering or whether power comes from being able to change external factors. For these reasons, it is flawed, but the impetus to not simply see women as victims of oppression was not, imo.
That the notion of choice has been co-opted by neoliberalism is another point I agree with, but one which bears further exploring. Neoliberalism descends from liberalism. Liberal feminism was never about changing gendered roles, it was about giving women the legal and educational tools to have the same opportunities as men. Within this framework, women were free to choose what to do with those opportunities. Thus, I would need to unpick the ideological differences between classical liberalism and neoliberalism to see how that has framed women's 'choices'. The difference a hundred years ago was that multinational corporations did not exist. But the roots of 'choice' were also in liberal feminism.
The challenge to capitalism came from second wave feminism, and women's liberation in this context was not the same as sexual liberation, it was much, much broader, about liberation from male-dominated hierarchies, space etc. And second wave feminism was also a reaction to leftist men who themselves continued to buy into gendered stereotypes and roles. It grew out of the 1960s protest movements.
I am not sure what you mean by sexual liberation. Access to contraception was a feminist demand because of the demands of multiple pregnancies. Access to abortion was because of illegal abortion. The argument that this suited men - do you mean because the primacy of PIV sex was never challenged? This is kind of like saying that women took men on male terms as regards employment.
I think your point about full bodily autonomy being a male-centric notion is an interesting one because it ignores the fact that women carry and birth babies. The implication would be that artificial contraception used by a woman and abortion makes women's bodies like men's again because it removes the threat and reality of pregnancy. I have actually thought this, for all abortion is a feminist touchstone, it makes women more like men, and therefore removes some of the need to treat them as women. (I don't wish to turn this into a pro-life argument, it is not).
Sorry if that is a bit disjointed, am on phone.