[Sherman Logan]

Demographic Winter is the direct result of the Sexual Revolution – which first became noticeable in the late 1960s, not coincidentally, about the time birth rates began to fall.

Au contraire. Birth rate dropped more from 1955 to 1965 (5.5 births per thousand), prior to the Sexual Revolution, than from 1965 to 1975 (4.5 births per thousand).

http://www.trinity.edu/mkearl/fam-kids.html

Drop in birth rates has been a continuing process since 1800. Here's a graphic.

http://lamarotte2.blogspot.com/2013/03/a-steady-drop-in-crude-birth-rate.html

No big change in the pattern can be seen in the 60s, coinciding with the sexual revolution, just a continuation of the drop, starting about 1955, that was a result of the end of the Baby Boom.

I agree in general with the author's POV, but wish he'd use accurate data to support his position, not just make stuff up.

[wagglebee]

Prior to the late 19th century, woman would routinely have a large number of children to account for high childhood mortality rates. As childhood deaths declined, the need for more children did too. However, the rate should have stabilized in the early to mid 20th century, but has continued to drop.