Their key insight is that you don't have to manufacture consent when so many voters just love the guy in the White House and will stand by him no matter what.
Why waste time convincing anybody of anything, when support for the war will just converge on the president's approval rating anyway?
It certainly appears to be a cult of personality. If he had a massive stroke tomorrow, or one of his secret service detail took him out, could anyone around him pick up the baton and get that same level of support?