I’m thinking mainly of this:
Definition of Propaganda
Propaganda is the spreading of rumors, false or correct information, or an idea, in order to influence the opinion of society. It may advance an idea or bring into disrepute an opposite idea. In literature, writers use propaganda as a literary technique to manipulate public opinion for or against one idea or another. In history, we can search a plethora of literary works used as propaganda to shape public perceptions, and direct their behavior to get a response. Generally, propaganda is a technique for convincing people, but which is misleading in nature, or promotes a false viewpoint.
from literarydevices.net
Propaganda can have positive or negative effects. It was used in Nazi Germany to sway people’s opinions in favor of the Aryan objective. “Mein Kampf” is often cited as an example, though I’ve never read it myself.
I also haven’t read “A Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson.” An article from Quora calls it “One of the earliest forms of American propaganda depicting Native Americans as violent savages capturing poor Christian women for no reason at all.”
You can see where I’m going with this. People can be influenced to accept hateful and immoral ideologies through an entertaining narrative.