I have found this to be pretty typical behavior amongst Catholics who find themselves backed into a corner concerning their beliefs and cannot defend them. That is what they resort to.
What I find interesting in your decidedly one-sided discussions with those clinging in hope to the Roman Catholic Cartel, is that they spout off one set of "facts" and are quickly corrected by the "stupid Protestants" with actual documented teachings of the RCC. Its like the Protestants really know more about the Catholics than the Catholics, and that is because we actually care to know what the official Roman position is so we know what we are up against.
What happens though is that the Catholic will disagree with their leadership - most often in ignorance, and yet is shocked to discover that Rome really doesn't sound all that Biblical when Rome's positions are laid out in straight fashion. Unfortunately, the emotional baggage of hatred against Protestantism overcomes the realization that we just might be right and their chosen religion's understanding just seems so wrong, and so there is is this spiritual crisis in willingly forcing oneself to believe that which is manifestly untrue because Pride in being a Catholic is more important than knowing God for who He is.
Some of us do.....
It's also because many of us were raised Catholic and remember well what we were taught, and when we're told that we were *poorly catechized* we can go back to the Catechism of the Catholic church and provide evidence of what the RCC really teaches.
We remember - much to the typical Catholic's dismay.
I believe that the reason there is no Catholic systematic theological documents and no Catholic " infallible" commentary of the entire scriptures is because such a study would only point out that the doctrines that Rome holds to are not consistent with the contents of the scriptures. All their theology comes from a misreading of a handful of cherry picked proof texts..
The level of "hatred" for Luther and Calvin and all things that name the name of Christ is rooted in the hatred of a salvation not of mans making or through the "church"
It amazes me that so many generations after the reformation the church remains terrified to take an honest look at the doctrines of the reformers