One might wonder why the Baby Boom ever ended. It certainly needn't have. Upon their return from World War II, soldiers settled into family life, and thus began the longest, virtually uninterrupted, stretch of prosperity in American history. It is easy to see the blessing of Almighty God on a nation who trusted in Him. Then, two severe blows were dealt to the nation.
[Via LifeSiteNews.com]
The Pill (legal right to purchase contraceptives) and the Kill (legal right to procured abortion, masquerading as choice).
Not even seeing them for what they are, but actually claiming they contributed to the cause of good, a blinded and confused nation stumbled through the next several decades, with no end in sight. James Taranto, editor of OpinionJournal.com and former deputy editorial features editor of The Wall Street Journal, sees it this way: "Check out these 2000 census data, which break down the population of New Hampshire by sex and age (in one-year increments). More New Hampshirians were 40 in 2000--meaning they were born in 1960--than any other age. The number. The number takes a sharp drop between ages 35 (1965) and 34 (1966), coinciding with the end of the baby boom (and, perhaps not coincidentally, with the Griswold v. Connecticut decision, in which the U.S. Supreme Court established a legal right to purchase contraceptives). Then it declines slowly each year, before undergoing another dramatic drop between ages 28 (1972) and 27 (1973)--just after Roe v. Wade. There does seem to have been a baby boomlet starting in the late 1970s and picking up in the '80s and early '90s, but it's far smaller than the postwar baby boom. Nationwide figures show the same trend."

What will be the next nail in the coffin? Human cloning? Re-definition of marriage? Outlawing the traditional family? Any of a number of candidates could conceivably deal another severe, and perhaps fatal, blow to further accelerate population decline in a once blessed nation.

See this graphic depiction of the magnitude of the nation's loss, as a result of Roe v. Wade.
See new chart showing dramatic effect of changes in social policy. I know statistics can be used to tell almost any story, but these results are pretty stark.