This is almost word for word what I've told people for years re: divide & conquer. The word I left out was "compartmentalized," that's perfect.
To build the DUMBs, a crew comes in, does 10% of the construction, gets fired. Crew 2 comes in, does the next phase, gets fired. Repeat until finished, let the public assume mismanagement. (Denver Airport)
Part of their brainwashing is compartmentalizing media outlets so each "side" only gets their truth, and competing narratives can remain in tact and we don't even know all the ways we're divided. Identical information has two explanations, ready for public consumption.
black vs white
blue vs red
lib vs conservative
yankees vs red sox