That may be Pio's position, but it's not the position that the Church takes. God judges you on what you willfully do that is wrong, and if your Protestantism is an honest effort to serve him, heaven is not closed to you. On the other hand, if (for instance) you believe Catholicism is true but stay a Protestant so you don't have to resign your country-club membership ... uh-oh.
There will be many good and righteous Protestants in heaven, and many false-brethren "Catholics" in hell. But once they get to heaven, all the Prots are certainly part of the "Catholic" (=universal) church, and none of those in hell are part of it any longer.
Wrong. Pio's position is the Church's infallible doctrine.
"God judges you on what you willfully do that is wrong, and if your Protestantism is an honest effort to serve him, heaven is not closed to you."
Only if they enter the Church before death. If you say otherwise, then you would be speaking heresy.
Read the Catechism...new or old..I'm not making this stuff up, this is not my position. (n.b. the new catechism makes provisions for people who have never heard of Jesus Christ.)
Your position is entirely protestant, it has no basis in Christian Doctrine. The concept of salvation you put forth is pure heresy, it is Universalism.
Get thee to a Unitarian Church