The milder expression desperation takes is duped support of Reality-Denying, “Other”-scapegoating loons like Trump or Cruz.
The more extreme expression is execution-style murder of 8 family members across multiple locations.
(Disclaimer: I know almost nothing of the details of this latest among now-seemingly-daily such occurrences. If this one doesn’t fit the description, though, you won’t have to look far [I heard news of another such multiple murder today] to find one that does, i.e., a desperate individual with easy access to gun[s] snapping.)