Answer
Totalitarianism, as the answer suggests, is the political system that Moncef Marzouki opposes. Totalitarianism refers to a form of government in which a single political party or individual holds complete power, suppressing opposition and controlling all aspects of society. Marzouki, a Tunisian politician and human rights activist, has been a vocal critic of totalitarian regimes, advocating for democracy, freedom of expression, and respect for human rights.