If such people are continuously bombarded with negative views.
The government is to blame for everything.
Telling them that the economy is in bad shape.
Global warming is a conspiracy.
Asylum seekers are all Muslim fundamentalist sent to Australia to turn us into a Muslim Nation.
As Goebbels once said if you tell people often enough for long enough the truth is of no consequence.
I'm sure there are some out there who believe what they are told.