Well, if you buy into Social Conservative rhetoric, we apparently discovered sex in the 1960s.
Many of the items on this list lack any kind of historical, social, cultural, etc. perspective that makes assessing them difficult. (I did not care to follow up on all of the links.) Plus, some of the stats frankly do not pass the sniff test to me, appearing more like inflated claims of advocates than actual, careful research (e.g., 50% of children will be on food stamps before 18). Plus, many of the items have nothing to do with 'the next generation' but are actually multi-generational issues.
This strikes me as one manifestation of the 'doomsday' genre, that attempt to shock us with outrageous statistics of often questionable provenance and often questionable interpretation. The unstated objective of such is often to encourage us to think back to some mythical good ol' days of yore when people were honest, earnest, sexually pure, courteous, polite, and governed by good old fashioned values. Of course, this mythical time was just that, mythical.
Frankly, if I had my choice, I'd choose to live today than in any other time in history. Aside from the fact that I'd be dead by now otherwise, the opportunities available in this country today are so much greater to so many more people representing a cross-section of society, that nothing even comes close. Sure we have problems, but I tell you what, if I were female, black, gay, etc., there's no way in hell I'm longing for the good ol' days.