Relating

The archetypal Harris voter is a college educated urban female while the equivalent for Trump is a non-college educated white rural male. In other words, the parties are split mostly by social class and to a lesser degree by gender. 

Whereas in the past the Democrats were like to capture union blue collar workers those have increasingly gone to the GOP with culture war scare tactics as bait and it's working. Even some Latino and black men have moved towards Trump and held their nose in the process to avoid the stench of his caustic presence. 

Those of us who don't get it cannot entirely relate but if we were sufficiently fearful about our future prospects and were low information enough, we just might.