Sexually immorality has plagued catholocism for centuries. The difference now seems to be that there is pressure not to just sweep it under the rug, but openly celebrate it.
Sexual immorality plagues all religions because of the power involved, and all human beings because we are fallen mortals wth disordered passions.
One of the Church fathers said something equivalent to “all heresy begins below the belt.” And it’s true if you look at all the heretical movements, almost all of them began with or involved a sexual component. People want to live in debauchery but get the Church to approve it and say that it’s ok.
The only difference is that once upon a time they had to leave the Church to form their own organization, but now it seems as if they have gotten enough power to think they can finally take over the Church itself and get its approval.