Stubborn,
Just to be clear, you would say not say St. Thomas of Aquinas, St. Robert Bellarmine, St. Alphonsus - I'll stop there - were in your personal opinion heretics, right? Only people who "persist in promoting the idea"? Not sure how one parses that, but . . .
DR
Well, I would say that Trent closed the issue for all time, and since Trent taught John 3:5 and contrary to a BOD, whoever still believes a BOD is in error - not a heretic. St. Thomas was in error on this subject and other subjects as well - so what? Regardless, St. Thomas died way before Trent, as for the other saints, it's whatever. If St. Thomas, arguably the greatest of all theologians, was in error on this subject - then no one is immune from error on this subject.
This is not at all about the great saints and Fathers, it's all about Trent having cleared up the matter for all of the faithful for all time, yet because there are text books we call catechisms with teachings contrary to Trent on this subject, the Catholic people believe the text books over Trent's clear teachings - why? That's all I'm asking, that is what I would like to know.