(Wikipedia) Totalitarianism is a form of government and a political system that prohibits all opposition parties, outlaws individual and group opposition to the state and its claims, and exercises an extremely high if not complete degree of control and regulation over public and private life. It is regarded as the most extreme and complete form of authoritarianism.
Aha! Another good thing about totalitarianism : Freedom from decision-making.
In Alastair Reynolds’ The Prefect, this was the exact idea behind the VTs (voluntary tyrannies).