Heresy is directly against the infallibility of the Church teaching and indirectly against the dogma defined. If a person denies a dogma without knowing it has been infallibly defined by the Church, they are not guilty of heresy. They would be in material heresy only.
Those who were raised in a Protestant sect and are invincibly ignorant that the Catholic Church is the true Church, are usually in material heresy only.
Since material heresy is not incompatible with the virtue of faith, it is not a direct obstacle to salvation.
John Paul II already answered for kissing the Koran, just as you will soon answer for having publicly defected from the Catholic Church, outside of which there is no salvation.
Pax, you are one heartbeat away from an eternity of suffering that you cannot even imagine.
This post, being a sewer of heresy, nay, apostasy ... proves more eloquently than any argument how the false Conciliar Religion corrupts faith. This guy's a complete trainwreck.
His brain has been so darkened by his heresy that for some reason the contradiction of claiming that Pax is on his way to hell, i.e. not in a state of grace and would go to Hell if he dropped, is so incredibly contrary to everything his false Conciliar Religion stands for, where all paths lead to God, and according to Wojtyla Hell could be empty.
Of course, Prots "usually" can be saved, whereas Traditional Catholics never ... even though the former don't have the formal motive of faith and cannot in fact be in "material" heresy. If any are in material error only, assuming this joker's right (and he's not), it's Traditional Catholics, who profess that the Magisterium is their rule of faith, but simply don't consider the heresiarchs Bergoglio and Prevost to exercise Magisterium. But then in your Hindu schools of Catholicism, they must not have actually taught you what formal and material actually mean.