Think of women as an r type in this context. R types perfectly explains modern women's mating habits. They have no resource cost to raising a child when they can literally enslave a man, or rely on the state for welfare.
"r/K selection theory describes two environmental extremes, and the strategies a population will produce to exploit each extreme. As a result of these strategies, each of these two environments will produce a very particular psychology in the individuals exposed to them."
"r-type organisms will not exhibit loyalty to fellow members of their species, or a drive to sacrifice on their behalf. Indeed, the very notion of in-group will be foreign, and the concept of personal sacrifice for other in-group members will be wholly alien."
"Here, there are unlimited resources just waiting to be utilized, and even the most unfit can acquire them."
Full article at link: http://www.anonymousconservative.com/blog/the-theory/rk-selection-theory/
there doesn't seem to be anything here