He's just an ignorant, narcissistic, greedy shit-pig doing what ignorant, narcissistic, greedy shit-pigs do. He's never known struggle or suffering, and as a result he's a broken human being who craves only power, money, and fame, and lacks empathy, wisdom, and critical thinking skills.
The far bigger disappointment are the tens of millions of people who have known struggle and suffering who voted him into office, because they're so incredibly stupid that they think "the real issues" facing this country are immigrants and trannies, and not the massively accelerating wealth inequality, and corporations that are turbo-fucking the lower and middle classes (and environment...).