Is this some sort of remnant of evangelical puritan protestant ideology?
I don't understaun this.
If you ask me, it'd make as much sense as Orthodox and Christians.... or Shia and Muslim...
I know not all Christians are Catholics but for feck's sake...
They're all Christians to me....
Edit:
It's a U.S thing but this is the sort of things I hear...
https://www.gotquestions.org/Catholic-Christian.html
I am a Catholic. Why should I consider becoming a Christian?
I now know more distinctions (apparently Catholicism requires duty and salvation is process, unlike Protestantism?) but I still think they're of a similar branch (Christianity) so I just wonder the social factor
Catholics do a bunch of stuff other Christians think makes them not Christina.
The biggest one is the pope, catholic lore says the pope is the literal spokesperson for God on earth all other religions he doesn't have authority.
Idolatry: other Christian religions don't have a lot of images of saints or anybody other than christ and basically think catholics are wrong for worshipping Mary and saints on the same level as Jesus. Similarly it's the difference between catholic crucifixes (has the dead guy on them) vs regular crosses
Transubstantiation: according to catholic lore when the alter boy rings the bell that is LITERALLY the body and blood of christ you're eating. Pretty sure other religions think this is a step too far.
"You should not have an image if God"
Literally just take "his" "son" and depict him as a white man. Lol.