Narcissistic individuals and those with psychopathic tendencies are more likely to strongly endorse left-wing antihierarchical aggression, according to new research published in Current Psychology. Antihierarchical aggression refers to a specific type of hostility aimed at challenging or opposing hierarchical power structures or authority figures. The new findings shed light on psychological mechanisms that motivate some individuals to participate in violent political activism. ...
The authors of this study have written a bunch of other similar studies where they find narcissistic individuals are more likely to be involved in activism of all kinds.
From their own conclusion of their paper:
Emphasis mine. They clearly state it has nothing to do with a person’s political ideology. Narcissistic people tend to be more involved in activism and protests, regardless if it’s left or right leaning.