Even this Roman Catholic knows that “Christian Nationalist” is an oxymoron, but the a lot of “Real Christians” insist that Catholics are not Christians so what do I know.
Depends on their view of the pope
And a lot of “Real Catholics ” insist that evangelicals are not Christians, and will end up in Hell unless they convert to Rome. Which is actually supported within historical RC teaching.
But while there are a relative few Catholics who are regenerated by simple person (not proxy) pious faith, for most Rome, as a false church with many true commonly held Truths, it is as the gates of Hell.
Distinctive Catholic teachings are not manifest in the only wholly inspired substantive authoritative record of what the NT church believed (which is Scripture, in particular Acts through Revelation, which best shows how the NT church understood the gospels).
* In the Bible, one is saved by penitent, heart-purifying, regenerating effectual faith, (Acts 10:43-47; 15:7-9) in the risen Lord Jesus, who was sent by the Father to be the savior of the world. (1 John 4:14) who did everything Right, but then took responsibility for all we did Wrong, paying the price the forgiveness of our sin with His own sinless shed blood. (Isaiah 53:4–11; Luke 24:47; Luke 24:47; Col. 1:14)
* And 3 days later then rose and ascended to His Father in Heaven as Lord of all, and thus enabling regeneration (John 7:37, 38; 14:24,25; 16:7) when one essentially believes as described above. (Acts 15:7-9; Eph. 1:13; Titus 3:5)
* And which faith is imputed for righteousness, (Romans 4:5) and results in following the Lord, (Jn. 10:27, 28; Romans 8:14) which is to formally begin with being baptized (Acts 2:38-47; 8:12,36,37) * And by which faith the redeemed soul is "accepted in the Beloved" and positionally seated with Him in Heaven, on His account, glory to God. (Ephesians 1:6; 2:6; cf. Phil. 3:21)
* And those who die in that obedient faith will go to be forever with Him at death or His return (Phil 1:23; 2Cor. 5:8 [“we”]; Heb, 12:22,23; 1Cor. 15:51ff'; 1Thess. 4:17) In contrast to those who were never born of the Spirit or who terminally fall away. (Gal. 5:1-4; Heb. 3:12; 10:25-39) The redeemed are those who come to God as sinners knowing their desperate need of salvation - not as souls saved by their works or religious heritage, but as destitute of any means or merit whereby they may find salvation - and with a humble and penitent heart (that at least implicitly wants a new life following Christ) believe on the crucified and risen Lord Jesus who alone can save them on His account, by His sinless shed blood and righteousness. (Romans 3:9 - 5:1
And who are thus baptized to follow the Lord Jesus with persevering faith (John 10:27-29; Acts 8:12; Ephesians 1:7; 2:8-10) - and effectually repent when they find that they failed to do so. (Psalms 32:5, 6; 51:3; Hosea 5:15; 1 John 1:9)
For penitent, heart-purifying, regenerating effectual faith, (Acts 10:43-47; 15:7-9) is that which is imputed for righteousness, (Romans 4:5) and thus those who die in persevering faith will do to be with the Lord forever. (1 Thes. 4:17) Thanks be to God.Thanks be to God.