You can permanently alter every woman in the world any way you like.
Turn them into cheap slaves for sale, induce lactation, turn them into pizzas, whatever.
How do you fuck up/improve the other half of the species?
Force all women to become subject to Isaac Asimov's Three Laws of Robotics, with respect to men.
1. No woman may harm a man.
2. No woman may disobey a direct order from a man, unless it conflicts with the first law.
3. A woman must protect her own existence, unless it conflicts with the first two laws.
All women turn into food.
World hunger becomes a thing of the past while women are completely robbed of their human rights.
i support inducing lactation in females. Not just during pregnancy. So we could have a human milk industry that would create millions of jobs and the ability to ingest a milk designed for us.
So what keeps any guy from going into a public space and commanding every female within earshot to kill themselves (or each other)?
Now, are women somehow forced into slaughterhouses and turned into meat-filled gift boxes manually, or do all women just magically turn into a butchered version of themselves in an instant?
Do all women turn into proper cowgirls, or do they just stay the same aside from suddenly lactating out of control?
Rule 1: No woman may harm a man, another woman, or themselves.
Rule 2: No woman may disobey a direct order from a man, unless it conflicts with the first law
Rule 3: A woman must protect her own existence, unless it conflicts with the first two laws
Make them superior to men in every way and watch the world burn.
women are bigger and stronger then men.
Every woman would probably have to be fitted with a collar, ID tags and a tracking device so their owners can find them if they're lured away by another guy.
(I guess this also means that if any woman alive wants to be able to step outside her door without being commanded to do some horrible shit, she needs to find a male owner who will give her commands that might supercede those from any strangers she might run across.)
Though would any command given to women via the internet work, too? Emails, tweets, Facebook posts, podcasts, etc?
If you're going to wipe out the current crop of women with a magic wish, you could wish for something more fun or creative than that.
Why not combine "all women get butchered for meat" with "all women turn into animalgirls" so that when men eat women it's not even cannibalism anymore?
Also, imagine the humiliation when fat women get turned into cowgirls and piggirls (and so on and so forth with every other woman), knowing that they're destined to end up as hamburgers or porkchops someday?
Then here's an idea: subject all women to a sudden biological need for semen that (little do they know at first) can never be fulfilled, resulting in every woman croaking but not before trying to ingest as much human semen as possible before they croak...
Not uncontrollably, just the ability to lactate at will from the onset of puberty. Although some would get better pay and benefits if they surrendered to a more livestock type of life. Otherwise, it's just: clock in, have your tits pumped for 8 hours, clock out.
Rather than just make all women infertile, I subject them to the additional humiliation of only being able to breed with animals.
Or perhaps every woman's entire menstrual cycle is replaced with an inhuman egg-laying cycle. What's in the eggs? Who knows - any ideas?
Dumb question: would women be aware that they've been reprogrammed and am following commands given to them against their will (say, you command a lesbian to suck your cock - her mind is screaming at her to tell her to stop as she gets on her knees and starts to unzip your fly, to the point that the lesbian may even beg and plead for you to command her to stop until you command her to be quiet), or do all women just happily follow any command without realizing anything is amiss?
WE'RE GONNA MAKE AMERICA GAY AGAIN.
Even better if they remain completely sentient in their new forms as they're eaten or rot away into nothing.