Can a Catholic judge a Protestant to be a formal heretic ?

I was just hoping that some of you could help me with a question I have. I was in a "Catholic" chat room and a Catholic there told me that lay Catholics cannot judge protestants as being heretics because no Catholic can ever know for certain if that protestant has committed the mortal sin of heresy because no Catholic can know if that protestant has met the 3 requirements for Mortal Sin to occur.
Those 3 are grievous matter, sufficient reflection and full consent of the will. That Catholic told me that even if a protestant publicly promulgates heresy, then we can't judge them and call them a formal heretic. In fact he apparently judged me and said I'm not a Catholic for calling protestants heretics. So I guess to him, I'm not a Catholic, but the protestants are Catholic. Anyway, what say all of you?

What does the authentic, living ordinary Magisterium say?

Believe it are not this guy is correct.
He believes how the Church today believes. Ya know? the authentic, living ordinary Magisterium.

Even though the Protestants of today do not believe in the Eucharist, despise the mother of God and ridicule the Catholic saints, believe the Catholic Church to be the antichrist and the papal office to be a figment of Catholic imagination, the sacrament of penance to be a joke, the veneration of sacred images to be blasphemy and certain books of sacred scripturte to be disposable, they are however considered to be our seperated bretherin and our friends. With friends like that you may ask, who needs enemies, but you've got it all wrong.
There forefathers and founders of their new religion surprisingly didn't hold so many extreme views of Catholicism as they now do, but, these forefathers of theirs were Heretics with a capital "H." They themselves though, (the good Protestants of today) are not to be considered as heritics because if you call them heretics they won't like you, and anyway, there's no culpability attached to their sin of heresy because they don't know any better and we mustn't try to convert them because they might say No and that would leave us Catholics feeling like failures and it would also mean that we'd have to study our faith but that would take too much time... I mean... we've all got lives to live. Right? and things to do and places to go and I know that I for one can't afford to pay someone to mow the lawn and wash the car while I do all this studying, and anyway, I need the money for my 10yr old who's birthday is coming up soon and he wants that new Play station Game... what ya call it.. Resident Evil... and a new 26” flat screen TV for his bedroom.

Listen,, The Protestants aren't trying to kill us or ransack our Churches anymore. All they want is the same thing as we want; to get on with their lives and love everyone, just like the Barney song says, and help one another when we can, ya know, like lending them our churches to have their services when their own are under repair and better still, if we could make our Mass more like their service, ya know, by getting a nice table in the middle with chairs all round in a semi-circle and learn some of their nice hymns they will like us even more and maybe even want to become Catholics without all that preaching of truth and such nonsense like we used to do.
By the way! What is Mass anyway?

CT, good to hear from you again. I hope my post helps your friend.

columba wrote:Believe it are not this guy is correct.
He believes how the Church today believes. Ya know? the authentic, living ordinary Magisterium.

Even though the Protestants of today do not believe in the Eucharist, despise the mother of God and ridicule the Catholic saints, believe the Catholic Church to be the antichrist and the papal office to be a figment of Catholic imagination,

Spoken like a true "Whore of Babylon" and "Rome will lose the Faith and become the seat of Antichrist" Jack Chick private interpretation Catholic who believes Papal Primacy and Peter, as the foundation for the visible edifice of the Church upon whose rock-like faith the faith and communion of the Church rests, to be a figment of VCI's imagination.

=cyan]]despise the mother of God and ridicule the Catholic saints, believe the Catholic Church to be the antichrist and the papal office to be a figment of Catholic imagination, [/quote]

Did I get that wrong?
This is what the "Rev" Ian Paisely beleves who until recently represented the opinins of the vast majority of the Protestant People of Ulster.
Unless of course I've picked him up wrong.