When this was written in 1968 a lot of people, including a great many Catholics, rejected it as outdated thinking, etc. However, we are now seeing that his predictions were completely accurate.
Time To Admit It: The Church Has Always Been Right On Birth Control
Truly, I believe the breakdown of the family was the objective of the feminist movement which was empowered by the Supreme Court decisions on contraception, abortion, etc. The feminist movement convinced many women that they would be second class citizens if they submitted to the traditional role of mother.
Contraception, including abortion on demand, was "necessary" to liberate them. Wide spread divorce fueled the fear, i.e. women had to be independent because their husbands might use them and lose them after they lost all marketable job skills.
Of course the whole campaign was a fabrication - but the masses are easily fooled by victim mentality, fear mongering and vague promises.