Supervillain is giving him too much credit. I'll grant you that he's a cartoon character, but cartoon supervillains have more complexity than him.
Kanye and Musk embody a nearly identical archetype and we'd have the exact same problem if they ran for president and succeeded. The cult of personality that follows shitty celebrities is a self-perpetuating one. It's rooted in nasty people admiring how important people can be nasty like them but without tangible social consequences. They form a mob around their cult heroes for that exact reason, strength in numbers. A safe space for the trash of humanity.
People in politics and business find Trump useful because he'll open doors for them in exchange for attention. They get cozy with leading him around by the nose with that attention until they forget that he will backstab them when they stop giving him that attention or there is more value in betraying them. Musk does the exact same shit, so again, I don't think that Trump himself is worthy of being viewed in the light you're giving him. Similarly shitty celebrities are drop in replacements for him, and worse, they might be more intelligent in their cruelty.