But most definitions can be questioned with historic examples that sometimes produce unfortunate answers.
Perhaps 'terrorist' == 'enemy' is the most honest definition.
Chomsky being a linguist will waste months arguing about how many angles can dance on the head of a that particular pin. He's unlikely to accept definitions with obvious 'except us' clauses. Nor should we.
Nonsense. Terrorism is violence targeting civilians or civilian property to further a political agenda.