I would argue, to the contrary, to the sede, that JP II may simply be the worst Pope in the Church's history. They say he stepped over the line. They say he is a FORMAL HERETIC, or essentially is. I say he's stepped awfully close in his ecumenism and in his recent attack on the Holy Rosary with his self-contradictory and awful RVM document. And if HE understands that the Jews need not convert, if HE understands that the Greek are not in schism but that traditionalist Catholics somehow are, if HE understands that there are no longer any Eastern Catholic, if HE does not really even confess transubstantiation, in fact, in reality, at this point - if all that and more, then the sedes are right, and I give JP II WAAAY too much credit.
I'm not convinced he's doctrinally so completely unsound. I think he is a rebel, yes. I think he believes he has a better way than the Saints and Doctors of the past. I think that's clear. And I also suspect that all of this predates the present. Because I think he's mentally incapacitated at this point. Whatever he wrought, he did so in years past. I think he should have resigned the papacy years ago. I think he's too far gone, now, to know his own mind, and to independently come to that decision. When he could have made this decision to step down, he clearly was not putting the best interest of the institutional church before his own. There's NO QUESTION there. The institution needs a vital Pope, one to either formally cross that ecumenical line and clearly prove the sedes right, or step back a bit into Catholicism. But I doubt the next would attempt to crawl the razor's edge in hopes of keeping people guessing - is the Pope Catholic?
Second, we must mind the heretics. They are the ones who are destroying the Church. Sometimes the behavior is bold, such as Mahony and Kaspar, other times it is subtle by seemingly harmless word and liturgical changes. We are obliged to resist
1 Peter 5:8-9 Be sober, and watch: because your adversary, the devil, as a roaring lion, goeth about, seeking whom he may devour: Whom resist ye, strong in faith; knowing that the same affliction befalleth your brethren who are in the world.