What type of government system are citizens denied religous freedom

Dictatorships and Communists governments

Explanation: Dictators like Adolf Hitler  denied religious freedoms to the Jewish race and killed millions of innocent Jews. A more Modern example would be Kim Kong Un. Who oppresses his people and forces them to believe that the Kim family are basically gods. With communism, a good example would be the Xinjian conflict where the Uiger people are opressed by the Chinese government and are not allowed to believe in there traditional religions and are sent to "reeducation camps" to be forced into the "Chinese way of life".