Boomers don't understand modern day living.
Military/Veterans are less intelligent and are hate mongerers.
Foreigners who lived under dictators and the like lived under people who didn't know how to make socialism work, are attracted to bullies, don't know how things work here.
Life-Long medical personnel suddenly have no credibility if their perspective doesn't fit the narrative.
It just goes on and on
Dunning-Kruger effect. Oversimplified the less you know the more you think you know alot about something. People are also terrified of being wrong. It's why people went insane trying to perform the mental gymnastics that Trump is unpopular, stole the election, and is now a dictator.