This is not just a Vatican II byproduct; this stuff began back in the '30s shortly after the Epicopalians declared contraception legitimate. Read McInnerney's "What went wrong with Vatican II". Their were many bishops at the council already weilding the modernist mantra, salivating at the mouth, ready to pounce on traditional Catholic teachings in favor of their modernist ideologies.
Should we be surprised at the present condition of our seminaries. The great majority of seminaries as well as Catholic colleges and universities have lost their Catholic identity. This is what our great Pope St. Pius X fought against and feared. I pray he intercedes for us now.
Every Catholic should read On the Doctrines of the Modernists. If only people had listened in 1907. If only people would listen today. My liberal pastor hates it, for obvious reasons. A small sample:
There has never been a time when this watchfulness of the supreme pastor was not necessary to the Catholic body, for owing to the efforts of the enemy of the human race, there have never been lacking "men speaking perverse things,"[1] "vain talkers and seducers,"[2] "erring and driving into error."[3] It must, however, be confessed that these latter days have witnessed a notable increase in the number of the enemies of the Cross of Christ, who, by arts entirely new and full of deceit, are striving to destroy the vital energy of the Church, and, as far as in them lies, utterly to subvert the very Kingdom of Christ...4. It is one of the cleverest devices of the Modernists (as they are commonly and rightly called) to present their doctrines without order and systematic arrangement, in a scattered and disjointed manner, so as to make it appear as if their minds were in doubt or hesitation, whereas in reality they are quite fixed and steadfast. For this reason it will be of advantage, Venerable Brethren, to bring their teachings together here into one group, and to point out their interconnections, and thus to pass to an examination of the sources of the errors, and to prescribe remedies for averting the evil results.