Utopia would absolutely reject Fascism and similar ideas. However, Utopian prisons could be fascist colonies for the violent.
Fascism is a philosophy of government that stresses the primacy and glory of the state, unquestioning obedience to its leader, subordination of the individual will to the state’s authority, and harsh suppression of dissent. Martial virtues are celebrated, while liberal and democratic values are disparaged.
Fascism is a way of organizing a society in which a government ruled by a dictator controls the lives of the people and in which people are not allowed to disagree with the government.
Utopia would also absolutely reject Communism and similar ideas. However, Utopian prisons could be communist colonies for thieves and vagrants.
Communism (from Latin communis – common, universal) is a socioeconomic system structured upon common ownership of the means of production and characterized by the absence of social classes, money, and the state; as well as a social, political and economic ideology and movement that aims to establish this social order. The movement to develop communism, in its Marxist–Leninist interpretations, significantly influenced the history of the 20th century, which saw intense rivalry between the states which claimed to follow this ideology and their enemies.