Better Never to Have Been argues for a number of related, highly provocative, views: (1) Coming into existence is always a serious harm. (2) It is always wrong to have children. (3) It is wrong not to abort fetuses at the earlier stages of gestation. (4) It would be better if, as a result of there being no new people, humanity became extinct.It's difficult to know whether the guy's just angling for a chance to get himself interviewed by Bill Maher, but the description raises some rather delicious possibilities. If it's always a "serious harm" when a new human comes into existence, perhaps the elimination of one of these harmful beings--say, David Benatar--would be a serious boon. One wonders whether David Benatar practices what he preaches: if it is wrong not to abort fetuses, perhaps there is a duty to abort them oneself by force when one finds women stubbornly attempting to carry their fetuses to term. If David Benatar is not out there right now poking pregnant women in the stomach then he's a hypocrite.
While I can't agree that it would be better if humanity as a whole became extinct, books like this make me heartily agree that it would be better if certain elements of humanity became extinct. Sadly, my own Weltanschauung prevents me from working to bring about such an end.