The medieval monks literally made up an entire subspecies of humans with dog heads which they actually believed to be real!
Gabu
Bad example, brother.
Which is the problem with completely open ended language, which is always used in such bills so as to only apply to whoever they want to persecute.
The biggest thing I can think of is the veneration of and praying to saints.
Which, ironically, is a core part of Abrahamic religions which was abandoned by Protestantism. I.e. Catholicism didn't add minor gods, Protestantism removed them.
Fun fact: the "-el" at the end of all angel names (except Lucifer and Satan, I guess) means "god". Not as in "from god", but as in "the god of-".
Catholicism may be different enough to be considered a separate religion
I believe what you mean to say is that Protestant sects would be considered a separate religion, as Catholicism far predates other sects.
If anything Catholicism is much more traditionally Christian, as it's the stablished status quo outside of the anglosphere.
You just do it.
Japanese literature
You mean generic isekai #38487?
Have you read the books in Skyrim (or previous TES titles)? There's some pretty good stories.
Which is a meaningless nonstatement.
Also, Lady Marian