From Real Life Villains Wiki
The root cause of terrorism lies not in grievances but in a disposition toward unbridled violence. This can be traced to a world view which asserts that certain ideological and religious goals justify, indeed demand, the shedding of all moral inhibitions.
~ Benjamin Netanyahu

Terrorism is the unlawful use of intimidation or violence directed towards civilians. Acts of terrorism are often exacted with political motivations. Common political aims include racism, political motivations, rebellion against the government, religious extremism, and homophobia.

Examples of Terrorism

Villains Associated with Terrorism

These lists are in no particular order.