Ma'am, it's good to see that you seem to be opting out of the masochism.
It's a terrible injustice you do her by egging her on.
What exactly is it that she's not buying or never has therefore never will? That she refuses to exchange her opinion for the truth?
The dogma decreed by Pope Boniface VIII states: “Furthermore, we declare, we proclaim, we define that it is absolutely necessary for salvation that every human creature be subject to the Roman Pontiff.”
Do you suppose the Holy Ghost forgot to add at the end: "...unless you don't believe he is the pope"? Or do you believe that God foresaw today's crisis and specifically worded it just as He did anyway on purpose, or perhaps better said, not without purpose? Because it is dogma it is timeless and always a requirement, it may as well have been decreed in 1920, or 1960, or 2000 as 1302. If you believe the latter, then you understand that God knew of today's crisis when He decreed the dogma yet said what He said anyway.
It is through faith that we believe that God saw today's crisis clearer than we who live it see it, and still said that in order to get to heaven, we are to be the popes' subjects no matter what our opinion in the matter is - not make our own decision in the matter, decide his status, decide he's not the pope, then claim the dogma doesn't apply under because the popes' are heretics. That idea makes the whole idea of dogma a colossal farce and demonstrates zero faith in God in His decree.
The dogma says we must be subject to the pope, it does not say we are to blindly submit to the pope, blindly follow his commands even if that meant that by obeying the pope, we offend God. That would be very stupid of God if He were to make or even intend such a decree - no? - particularly knowing that He foresaw this crisis and excluded our opinion in the matter on purpose.