As this column has repeatedly noted, women are hypergamous, which means that their instinct is to be attracted to men of higher status than themselves. When the societywide status of women increases relative to men, the effect is to diminish the pool of suitable men for any given woman. If most women reject most men as not good enough for them, the effect is no different from that of a low sex ratio. High-status men, being in short supply, set the terms of relationships, resulting in libertine sexual mores and higher illegitimacy.
Suppose Bloomberg’s ad campaign is successful at inducing a large number of lower-class teenage women to stay in school, pursue careers, and forgo childbearing until marriage. If they succeed in school and work, they will find their marital prospects further limited by competition from other successful women. The problem of illegitimacy isnt soluble through moral suasion. The sexual and feminist revolutions are so deeply embedded in American culture and law that it may not be tractable at all.