Earlier quoted context omitted.
What's your point?
I'm not sure, frankly, but I think there's a connection. A more sexless society is also a society with a lower overall birthrate. When the pressures of urbanization and modern life mean few people choose to have children while the trends in the article and in many of these comments show that people are less likely to accidentally/serendipitously become pregnant as well combine to somewhat drastically reduce the birth…
It's probably many things, but I think another factor is a delayed transition to (biological) adulthood, which leaves fewer "prime years" for the tiring task of raising children. That delayed transition comes in part from an increased focus on the self. Although individualism is often attacked or derided in modern American culture (from the political left at least), I feel like there is a near-universal individualism across our society that never existed in the past - people are delaying/skipping having children and putting their own exploration and experience first. It's a luxury in that we didn't have this option previously as a species, but now we can entertain "finding ourselves" or traveling as a lifestyle and so on. For many, delaying parenthood or skipping it outright is a simple matter of not disturbing that freedom of choice that they've come to enjoy. For others, that freedom itself becomes tiring and the search for purpose brings them back to children. But the side effect in aggregate, is a more sexless society and lower overall birthrate. Just a thought...