I didn't try to pass the anecdotes off as "data" - just launching points. Further, another woman in the thread where those statistics originate challenged them in the same way, calling the single fathers "self selecting." I suspect this is right out of some feminist tract of "talking points" as a defense of single motherhood. But with the availability of artificial insemination, birth control, abortion, and the societal tactical nuke we call "divorce" - I'd have to say that women and men are equally "self-selecting" as single parents. To say otherwise is to continue on mutually exclusive paths of "choice" and "victim" - something that ideological feminists do quite comfortably.
I'm going to go out on a limb and suggest that, based on the availability and very heavy use of the afforementioned options, women are actually more "self-selecting" as single parents than are men.