I don't think all LOs are narcs, certainly not, but I agree that the push pull strategies of the narc are also the very ingredients that can set off this madness.
SelfLoathing it really isn't fashionable anymore to have relationships! its all about supply and demand though. Its now cool to do hook ups. I guess some women are happy with this, or at least convince themselves of it.
Whilst I can do recreational sex I am not really bothered, mostly its second rate. How can it be anything else when two people don't really start out from the point of view that it is an expression of how they feel? It goes back to that idea that we should treat people how we wish to be treated. So in order for it to be any good it would have to be about trying to please someone else, gaining pleasure from pleasing them and not about using someones body to please yourself. But the relationships boards are always made up of comments about "what is in it for you" and "what do you get out of this" The selfish need to meet ones needs first and foremost present in many ways, not just the way in which men use women for sex.
I don't think the real number of people with narcissism in its true form has swelled to the degree that it makes sense of why almost all men seek out casual sex. I do think though that the culture of post modernity individuates people, gives a third perspective of the self, and subjectivity that now relies even more heavily on how other people rate you, as commodity, as something with a sort of "use value" So women now "sell" and market themselves through their bodies, women fancy women (more common now) men see women as having no value beyond that which we market, and bodies are interchangeable, people are not. I now (not me in particular) gain my sense of self and value from instagram, facebook and twitter, I am rated on my large arse, fake boobs and white teeth, and how this set of characteristics fit together like a jigsaw, a conglomeration of body parts! So yep we are all becoming "whores" to self gratification in order to boost our self esteem. Even the simple act of meeting people has become marketised with OD. Its all about public image, to the degree that we can't stand what lies beneath it because the real person is always at odds with the perfect image.
So yes we are all becoming a little bit narc, because the total subsumation of all human emotion, biological and natural processes are colonised by the post modern condition and by the market. Tis shit but WE are not simply victim, women are not dupes, we are just as much to blame. If more women thought about the big picture, and thought "oh well he could say that of me one day" or "nah I don't want to be wanked on" or "I can wait to have my physical needs met until my emotional needs will also be met" then supply would never drive demand. Its a fallacy to think demand drives supply.