Daniel Boorstin observed the Kennedy administration and predicted in 1963 that it was just a matter of time before TV stars would dominate conventional politics.
Plus he is spineless, lying, rapist.. well, sure it is a kind of a charisma. One fitting for some video game villain.
I do remember that debate with Kamala were Trump came across as unhinged with that "eating cats and dogs" thing but I think one reason why he might have won was revealed in Harris's waffling around the issue of climate change where her answer was "drill baby drill", pandering to the Pennsylvania market.
People who want to see climate action are discouraged by this but people who want "drill baby drill" don't believe she in sincere and think that she is pandering. So talking that way she just loses people she doesn't win them.