He gives a lot of good points and it applies to the right as well, take the Cheney’s as a good example. Some folks on the right are hell bent on being loyal to the neocons in their utter delusion.
A good assumption would be that most on the left and neocons would have a difficult time watching this video because then they’d have to admit they’ve been duped, and much easier to hold animus against those they disagree with, which of course is a result of propaganda.