Are there any cases in the current world where you've seen things occur that have been both 'against the female gender' and positive in general to the human race, and that feminists have reacted negatively to?
Voting against affirmative action for women in science and engineering fields is I'm sure a real life example that many individual universities have gone through. Which I think fits the description. Bad for women, clearly -- it's always bad for your group not to get as much free stuff, that seems clear. I argue good for society, though, since we want our national experts in things to be the best experts they can be, and affirmative action can undermine that.
I'm not saying women can't make good scientists and engineers. I'm saying that some individuals could make brilliant ones, but they can ALREADY get accepted without affirmative action.
Whereas the majority could also
potentially have made great engineers, but the culture in the home from their parents convinced them they can't be and to make different choices of classwork and extracurriculars and hobbies and by the end of high school it may be too practically late. That's where the problem is and where it would need to be solved. Not by just pretending that people were raised differently and prepared for fields differently than they were.