Pius IX on invincible ignorance and souls in good faith able to attain eternal life: "There are, of course, those who are struggling with invincible ignorance about our most holy religion. Sincerely observing the natural law and its precepts inscribed by God on all hearts and ready to obey God, they live honest lives and are able to attain eternal life by the efficacious virtue of divine light and grace. Because God knows, searches and clearly understands the minds, hearts, thoughts, and nature of all, his supreme kindness and clemency do not permit anyone at all who is not guilty of deliberate sin to suffer eternal punishments." https://www.papalencyclicals.net/pius09/p9quanto.htm
If you reject this doctrine, Stubborn or Ladislaus or whoever, you are a neo-Calvinist heretic who does not believe in Catholic doctrine but in your own heretical and warped perversion of it. You do not know God's supreme kindness and clemency which Pius IX speaks of. And you are not willing to listen to your betters in the Church like Pope Pius IX who teach you about it. What did Christ say about that in Mat 18:17? He said whoever refuses to listen to the Church has rejected Him and is lost. Again, be careful not to be that person who lives and dies obstinately refusing the Church. I pray for your souls to be cured of the wilful spiritual blindness some of you are in, wanting to declare Pius IX, Pius X and Pius XII all to be heretics for bod and invincible ignorance when they are some of the best Popes in history. If you start anathematizing Pius XII, like the schismatic Ladislaus wants, you'll deny Pope St. Pius X's canonization next. Pope St. Pius X is of course a saint but he was both beatified and ultimately canonized by Pope Pius XII. If you anathematize one, you can anathematize the other. You are thus on the path of becoming Old Catholics and or Orthodox schismatics. Turn back before it is too late to save your soul, but it is not up to me to help save you. You must will it.
Divine light and grace means the gospel, Catholic faith and baptism. It does not mean someone is saved outside the church without baptism or ignorant of the incarnation of Christ and the Blessed Holy Trinity.
Pope Pius IX, Nostis et Nobiscuм (# 10), Dec. 8, 1849: “In particular, ensure that the faithful are deeply and thoroughly convinced of the truth of the doctrine that the Catholic faith is necessary for attaining salvation.
Pope Pius IX, Vatican I (+1870): “… no one can ‘assent to the preaching of the Gospel,’ as he must to attain salvation, without the illumination and inspiration of the Holy Spirit, who gives to all a sweetness in consenting to and believing the truth.”
Pope Pius IX, Ubi primum (# 10), June 17, 1847: “For ‘there is one universal Church outside of which no one at all is saved; it contains regular and secular prelates along with those under their jurisdiction, who all profess one Lord, one faith and one baptism.”
Pope Pius IX- Syllabus of Modern Errors- Proposition 16, Dec. 8, 1854: “Man may, in the observance of any religion whatever, find the way of eternal salvation, and arrive at eternal salvation.” – Condemned
Ephesians 5:8 “For you were heretofore darkness, but now light in the Lord. Walk then as children of the light.”
1 Thess. 5:4-5 “But you, brethren, are not in darkness… For all you are the children of the light.”
Colossians 1:12-13: “Giving thanks to God the Father, who hath made us worthy to be partakers of the lot of the saints in light: Who hath delivered us from the power of darkness, and hath translated us into the kingdom of the Son of His love.”
1 Peter 2:9: “But you are a chosen generation… a purchased people: that you may declare his virtues, who hath called you out of darkness into His marvelous light.”
2 Corinthians 4:3-4: “And if our gospel be hid, it is hid to them that are lost, In whom the god of this world hath blinded the minds of unbelievers, that the light of the gospel of the glory of Christ, who is the image of God, should not shine unto them.”
2 Timothy 1:10: “But is now made manifest by the illumination of our Savior Jesus Christ, who hath destroyed death, and hath brought to light life and incorruption by the Gospel.”