Just take a look at the many, many pop-psychology books that came out after Vatican II, which has always accurately been described as a pastoral council and not a doctrinal council — because it was primarily about rejecting the Church’s pastoral teaching on sexual morality. That was why its supporters were so enraged when Paul VI did not support birth control. They thought they had finally swept away all that tedious sexual morality stuff.
All of the other things, such as the destruction of the liturgy and of Catholic practice, were basically aimed at wiping out all knowledge of the past and any trace of Catholic doctrine, which is founded on a combination of revelation, tradition and authority, by severing the connection with tradition.
Was this in the mind of everyone involved? Of course not, and in fact, it was probably only in the mind of a few, who saw their moment in the upheaval of the 1960s and seized it. But there is a saying from one of the Fathers (sorry, don’t remember which one) to the effect that “all heresy begins below the belt.” That is, people want unbridled sexual activity and make it their god - as they did in Sodom - and will come up with any ingenious intellectual argument to do so. And if resisted, they will use force, as did the men of Sodom, the gays of today, etc.
The Church is only just beginning to recover from this. The homosexual and pederasty scandals of the 1970s and 1980s were a direct result of the corrupt doctrines, acceptance of heretical teachings and tolerance of corrupt practice that had invaded the Church after the Council.
So, in other words, there were no Catholic Apologetic after Vatican II that supported sodomy or other sexual sin. Would that be accurate?
Have there been heretical groups, like Dignity? Sure. However, correlation doesn’t equal causation.
Ask yourself daily whether you exercise the virtue of Faith.
As a refresher “ 1814 Faith is the theological virtue by which we believe in God and believe all that he has said and revealed to us, and that Holy Church proposes for our belief, because he is truth itself. By faith “man freely commits his entire self to God.”78 For this reason the believer seeks to know and do God’s will. “The righteous shall live by faith.” Living faith “work[s] through charity.”79