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.
I’m not talking about property damage, I’m talking about terrorism where people die. Maybe look into the RAF, for example?
https://www.csis.org/analysis/right-wing-terrorism-threat-europe
21% Right wing deaths from total amount of people murdered in terror acts
2% for Left wing
I already know that is why I said something. The left is known for more property damage though.
Other interesting things
6.9% from ethno nationalists. In the US we would have to include this in right wing terrorism.
69.3% from Jihadists. Good Lord no wonder why their politicians are so anti-muslim.
Also perspective helps as overall the amount of terrorism has been very low for both all of Western Europe and the US excluding events like 9/11 for the last few decades.