Sometimes it occurs to me that parts of both male and female sexuality evolved amidst practices and times when we weren't human, or human society was vastly different than now. So I mean biological and cultural aspects of sexuality.
So some things may stimulate a certain physical response, or even cause pleasurable sensations, because those responses evolved as a survival mechanism. The people who didn't have that response may have in some situations died out, or flourished less. and some aspects of human sexuality reflect that. It's very, very murky and cloudy.
To put it somewhat clumsily but to illustrate a point, did any current woman "choose" to evolve to be a member of one sex in a species where the majority of physical investment in child making falls so disproportionately heavily on one sex and not the other.
I can see how in that very muddy context, concepts like "consent" only really address a tiny little top slice of the interaction between the sexes that is going on. The part of sexuality that has evolved since we had developed a certain level of intellect and social behaviours. And that's before you take into account the distortions that sex, gender, race, class, health, education and so on place on people's relationships.
So, in that extended sense, I can see where she's coming from...all those millenia of tiny incremental evolutions that made us what we are today were hardly ever consensual choices.
But I also don't see how we can suddenly easily change to be more like sea horses or whatever. There are ethical questions with a lot of things that people already do in the area of reproduction that are only recently technologically possible. Look at things like the surrogacy industry in Asia...are some of the choices open to people in all roles in that equation really free and fair? Depends on how you frame those choices. And I think there could be a lot to consider before embracing technological routes to evening up the ability of men and women to bear children- things like the ability to genetically engineer children or grow them outwith a human body. Add in to that rapidly blurring gender lines and definitions, rapidly growing economic inequality in many parts of the world and you've quickly got scenarios only really addressed thus far in science fiction. (The works of Iain M. Banks have some interesting situations re gender identity, reproduction and power dynamics.)