This is a book that might answer some of your questions about the destruction of US families, divorce, morality and community. If you have time, consider giving five or six minutes to this elucidation of contemporary problems.
The author, Prof. Charles Murray, is quite an unusual fellow. His doctoral work was at MIT. For those not in the know, MIT is one of the best schools in the world. In realms of technology and science it might be number one.
He has composed half a dozen books and his work entitled the Bell Curve was discussed around the world. It was a topic in both major media and intellectual circles. His labor in this book pertains to the evolution of American society. In the past, most sociologists discussed the middle and lower classes and touched race. In these 417 pages there's a great deal pertaining to education and economic stratospheres. Weaved into his thoughts are the fibers of morality, stability, marriage and religion. If you adjudicate by this book it seems that after the ideological battles that emanated from the Bell Curve, he has left the table containing delicacies cooked from ingredients oscillating around race. This might have been due to a knowledge that such enticing foodstuff could be drainfully toxic.