Indeed, we can cite many past Presidents who were thoughtful, articulate, compassionate, and intelligent. And it's hard to imagine how anyone could disagree with that. But in fact a large fraction of America has come to regard such talents as signs of liberal elitism. Rather than being comforted and inspired by such performances, they're put off by them. They've been conditioned to regard them as Establishment leadership that's far removed from their everyday problems.
In contrast, there was a guy reviewing The Comey Rule in some ephemeral video who pointed out that Donald Trump has never finished a sentence in his life. Hyperbole aside, he's not very wrong. It's something I've always referred to as a "stream of semi-consciousness." And ironically this appeals to vast numbers of Americans. Despite his being inarticulate and illiterate, Trump comes across to his base as speaking from the heart directly to them, instead of carefully-prepared, politically-vetted speeches.
They're already talking about running Trump again in 2024. I honestly don't think he'll live that long.