For example [vaguely]: writer creates a character who behaves like X, despite nobody actually behaving like X in real life. Then characters behaving like X become a wide-ranging trope. People in the real world begin to think it’s normal to behave like X, and subsequently start actually behaving like X themselves.
Any actual examples of this phenomenon happening?


far left terrorism being both rampant and effective.
There has been quite a bit of left wing terrorism in Europe, in the past
Most people do not consider property damage to corporations as terrorism even if the courts and law says it is.
There is a huge disconnect here which has to be highlighted otherwise leftists are grouped in with mass murderers.