Answer:
The American Dream dictate that everyone who lives in the country can have the freedom and opportunity to prosper as long as they work hard. It sell the idea of a society with very few barriers for social mobility.
The raid in the U.S capitol reveal that a lot of people did not have a similar way of thinking.
Regardless of the encouragement from trump, many economists believe that Trump is just a symptoms from larger problems, not the cause of the problem itself.
The main cause was because people are desperate. They can't find a way to achieve success and prosperity in their life and they rely on the government to somehow magically solve the problems. They see Trump as some sort of ray of hope and blindly believe that he can change their poor situation if he was given with more time in presidential seat.