Relatively slow-computing, working class, and especially agrarian people take longer to brainwash to a dull shade of politically correct nominalism. The intellectual elite [tautologically?] are the vanguard of this death cult.
The low IQ will also take longer to revert to clear and natural thinking, methinks. It took generations to degenerate so far, it will take generations to return, barring a big cull.
Hunker down, and stay fortified, goyim!