I'm saying that limited context is only that, a limited context. It barely explores the vast ripples that a change to this foundational dynamic of humanity would have.
Maybe I am seeing it as too incredible a change, but humanity + sexbots seems like such a monumental change, that I could see it going utopia or dystopia just as easily over a couple generations.
People easily forget that the way our society is now isn't how it always was. When the common man is deprived of basic essentials for too long, be it food, shelter, sex, etc. then there's usually a revolt and things get shaken up for a while.
Take it back far enough, and you saw one alpha male (the king, the chief, even the biggest caveman) keeping all the women & resources to himself. But then all the rest of the guys (the common man) band together and kill him.
So now we're entering an era where once again the very very few are getting everything, material goods, medical treatment, women, etc. But the common man has been sated with pleasurable substitutes that trick his brain with seratonin. A bag of cheetos, a can of Pepsi, a video game and a porno have his brain pretty much fully engaged and satisfied. And those tricks are getting better and better: Mega 3d flavor cheetos, better, more realistic video games that you can take everywhere, 3D high def-porn (or even sex robots.) Men become virtually enslaved by these creature comforts and lose the drive to strive for more.
The problem is, while a few industries are making big money off the bread & circuses, men are overall attaining less education, making less money, taking fewer career risks, getting married less and having fewer children. When their basic needs are met elsewhere, they lose the desire to compete and better themselves in order to attain a woman.
I posit that the better these distractions get, the more men will "drop out" of not just dating, but the economy. This is already has and will continue to have progressively more drastic implications for Western society.
Women are of course targetted by marketers for various industries as well, providing many distractions in other forms, but those distractions don't tend to derail women's basic biological desires as badly as they do men.
I'm not saying I have all the answers or can predict exactly what happens next, but I'd say it goes something like:
1) Western men continue to gradually disengage from traditional societal roles in the face of increasingly effective creature comfort distractions.
2) Birth rates fall below replacement rates (already there if you subtract 1st and 2nd generation immigrants.)
3) Single motherhood becomes even more common (already above 50% of all births here.)
4) Obesity rates continue to skyrocket since men who fuck robots don't need to be attractive, and average women continue to push "fat acceptance." The current trend of "fit lifestyle" people only interacting with each other continues to escalate, though the pool of participants shrinks.
5) Either the economy is allowed to contract due to falling birth rate and low participation (mainly by men) or massive immigration is encouraged. Either way, the Western world's reign of dominance comes to an end, unable to sustain itself without the traditional family structure.
6) We might see a "bachelor tax" instituted to try to encourage men to be more productive or marry\reproduce. There will undoubtedly be many Jezebel articles demanding that men "man up" and do what women want (those are already here.)
I'm not some kind of doomsayer. This'll probably take a hundred years. Maybe we'll have drowned from global warming or perished in a nuclear war with Iran by then. But it seems like we're on a pretty clear path of consumerism & hedonism in place of traditional family values.