Slightly tangential: this is one of those language things that tripped me up, and still does on first blush. "Antichrist" reads intuitively like some sort of polar opposite good vs. evil thing. That if Christ is about love and forgiveness, the antichrist is some cartoony evil concept. Then I learned that "antipope" is just a hard fork of the pope and isn't necessarily aligned against Catholicism in any significant way.
If the highest good is a belief in Christ, as is Christian doctrine, then an anti-Christ that is good in every other way is still evil by Christian doctrine.
Sure ok. But to the true pope and his followers, the antipope is definitely evil and going to hell. It's a matter of perspective.
Thanks for highlighting this - I won't be able to unsee how well this does in "x person is bad" clickbait headlines vs "Christ V2: A Revised Edition" which seems to be more accurate and honest. I admit I've fallen for this for trop for ages ...
I agree with you re: antipopes, but I don't think it applies too well to how "Antichrist" is used in the Bible, which definitely is in a "good vs. evil" sense. Small-a "antichrists" is a somewhat generic descriptor used in 1 John 2 (one of the criterion being that they "[deny] that Jesus is the Christ"), and so it seems to refer to those who actively oppose Christ.
Separately, that passage also refers to "the antichrist" (emphasis mine), who is traditionally identified w/ the "man of lawlessness" in 2 Thessalonians 2 and the "beast" in Revelation. And this figure is pretty unambiguously evil ("man of lawlessness"; "son of destruction"; makes himself out to be God; violently persecutes Christians; makes people have to worship him if they want to buy or sell anything; etc.)—even by secular standards, he's a megalomaniacal despot.