That Trump supporters instantly identified themselves as the deplorables they were rubbing shoulders with, lent support to my theory at the time that the election was fundamentally between "an entertaining guy" and "your mom". If a well-known missus in your neighborhood was running for high office, no matter how long she had been in politics, people would still scoff, "Be serious! Her? I *know* her!". I wouldn't dare project how the neighborhood would vote in the end, but I do not think Americans took the run-up to the election seriously, they just put on a melodrama for each other.
Have there been any polls of how many people don't believe the election was for real?