This is really nonsense, if you just take the time to think about it.
But I don’t blame you for thinking like this, it is what you were taught!
“We declare, say, define, and pronounce that it is absolutely necessary for the salvation of every human creature to be subject to the Roman Pontiff.” Unam Sanctam 1302
“The most Holy Roman Church firmly believes, professes and preaches that none of those existing outside the Catholic Church, not only pagans, but also Jews and heretics and schismatics, can have a share in life eternal; but that they will go into the eternal fire which was prepared for the devil and his Angels, unless before death they are joined with Her; and that so important is the unity of this ecclesiastical body that only those remaining within this unity can profit by the Sacraments of the Church unto salvation, and they alone can receive an eternal recompense for their fasts, their almsgivings, their other works of Christian piety and the duties of a Christian soldier. No one, let his almsgiving be as great as it may, no one, even if he pour out his blood for the Name of Christ, can be saved, unless he remain within the bosom and the unity of the Catholic Church.” Cantate Domino, 1441
quoting (in part) Saint Fulgentius
This is really a Gospel of hate.
Great Lent, Holy Week, and Pascha in the Orthodox Church - Greek Orthodox Archdiocese of America
"Two people went up to the temple area to pray; one was a Pharisee and the other was a tax collector. The Pharisee took up his position and spoke this prayer to himself, ‘O God, I thank you that I am not like the rest of humanity–’
But the tax collector stood off at a distance and would not even raise his eyes to heaven but beat his breast and prayed, ‘O God, be merciful to me a sinner.’
I tell you, the latter went home justified, not the former; for everyone who exalts himself will be humbled, and the one who humbles himself will be exalted."Luke 18:10-14 NAB
"Woe to you, scribes and Pharisees, you hypocrites. You lock the kingdom of heaven before human beings. You do not enter yourselves, nor do you allow entrance to those trying to enter. Matthew 23:13 NAB