Why are Donald Trump’s followers stereotyped as idiots?

The creation of a stereotype and why it was formed in the first place is difficult to trace. However, it’s widely known that the average American who supports Donald trump is less educated than those who do not support him. Additionally people who less educated are more susceptible to confirmation or other biases and the influence of others, which may be one reason there is a strong association between Trump followers and viewers of Fox News. This type of biased feedback loop can lead to the spread of incompetence.