I'm not minimizing anything.
People love to gloss over real racism in the electorate, and pretend like the big bad boogeyman of Cambridge Analytica tricked people's parents into voting racist. That's just not what happened.
Those people were enjoying Fox News for 20 years before Cambridge Analytica. Trump won because of extreme voter suppression, clear and simple.
The attitudes of those Trump voters didn't change before or after the election.