Actually we kind of do agree. he has the mentality of a grade-schooler. he wants people to think of him as "god-like" (a macho tough?). the more he insults and brags, the bigger he thinks he looks to others (like a bully in school).
I said "grown adults" ignore his stupidity. The people who imitate him, chant over him, prostrate themselves before him, or think his way of acting is appropriate(?) are NOT grown adults. They're only naive juveniles who think that by agreeing with the bully they make themselves look good too (we want to be just like him).
As you have accurately put it numerous times, some of us are mature enough to see "the emperor's new clothes". We can see that he's nothing more than a buffoon; an actor; a bully; a charlatan; an idiot! We want to shout to his idiot followers, "Grow up! open your eyes! Can't you see this scoundrel is nothing more than a fake and a liar?