“…the shift in vulnerability to conspiracy theories may have deeper psychological roots. Research suggests that people embrace conspiracy beliefs as a way to cope with perceived threats to control. In particular, Joseph E. Uscinski and Joseph M. Parent at the University of Miami have argued that conspiracy theory beliefs increase in response to group threats, including among losers of elections. These beliefs can help rally groups and coordinate action in response to a decline in status or power.”
Brendan Nyhan, Why More Democrats Are Now Embracing Conspiracy Theories.