JPII and Benedict were/are both Modernists and accepting of the “spirit of Vatican II” Both did try to weed out the moral rot that flowed from that “spirit” but they did not go after the root of it.
The same JPII and BXVI who demonstrated themselves as heretics (whereas the Holy Ghost protects always a true pope from promulgating heresy)?
“’aint” JPII for example hosted interfaith prayer which is a heresy.
BXVI as a “Cardinal” wrote in a book against our precious ancient prayer of faith the Apostles Creed, condemning the resurrection of the body.
Maybe these two were placebos to pacify the right wing of the VII schism. But a little research determines their conservatism was a bit artificial or still insufficient.
Impossible that these two might have been true Popes.