Well, thats a hard one?!
Its not only about critical thinking and intelligence,
Its actually more about recognize a "method" ... And the history behind it.
My best advice how to understand these things/how this technique is pulled out/used (Hegelian dialectic) is to understand the "secret core codes" of the Jesuits.
- Read "The art of war" by Sun Tzu (which is a pseudonym .. For a Jesuit),
"The art of war" is a Jesuit manual hidden in plain site as an historic book,
Which fit so well with their most important code:
“black is white and white is black” ..i.e Always accuse your enemy for what you are and do, always tell the opposite to the truth .. If you so do, it will be impossible for anyone to accuse You (The Jesuits) and in a logic way make others understand what you REALLY are doing. (The art of war "short version")
RE: Why is propaganda effective? How does mental corruption take place?