From this starter post by the Korean-American, there are many informative comments added to give wider context.
One of those reads as below:
"excellent example of how to plant hate into children's deep memories so that they can turn into weapons at a click one day"
The linked post:
Today I'm going to show you what brainwash really is :
Cotton Picking
Slavery
Genocide
Concentration Camps
Nazi
Dictatorship
Racism
Terrorism
Freedom
Human Rights
Boom!!
Are you ready Soldier? (I really love this video)
(A THREAD )
WATCH THE VIDEO CLIP:
When certain words or information works like a switch, that easily triggers you, awakens your anger, your sense of justice, so that you can act by instinct without any doubt, and you don’t even do fact check before your actions, you might be considered, brainwashed.
(…)
And some other posts in summary:
Yeah except literally none of it is true. Even eating cats and dogs is something that only occurs in certain isolated rural areas. It's like saying "it is normal in the USA to practice incest" because it happens in some rural in West Virginia, or Alabama, or Kentucky. They go to family reunions looking for dates in West Virginia. Banging your cousin is legal in California, but not Kentucky. Yet incest is statistically highest in Kentucky, not in California.
Same thing about the polygamy just because some part of the society practice that in Utah.
Most Inbred States 2021
Genetic Defects Noted In Parts Of Appalachia - The Washington Post
And before anyone says "but WaPo is biased" (which is yes, it is), the article reports on research conducted in Kentucky by the University of Kentucky.
Then imagine to take another kind of Quiz question at the elementary school in Asia to brainwash the kids
a. It is the norm in the USA to kneel on throats of Black persons until they die.
b. It is the norm in the USA to accept frequent mass shootings.
c. It is the norm in the USA to believe FOX NEWS is news.
d. All are correct
e. None of above
And this one is funny too

some people are just really sharp
True or false: BIDEN, the president of the US was voted on by the US people.
FALSE. Members of the electoral college voted for BIDEN.
There are plenty of the US cultural practices that Chinese people think are f**ked up (e.g. circumcision).
And also to most people, just saying NORMS, which to most means it’s already normal, infers all are true. It’s the weirdest way to word a question, AND it’s horribly racist.
Yes, and also it's setting up a multiple choice with A. Horrible and B. Scary (to a child) so that even if C. was completely true, they are presenting it in a way that is JUDGMENTAL.
(…)
So many things to learn just from one single starting post...