A form of government in which the governing body has absolute, or almost absolute, control. Typically this control is maintained by force, and little heed is paid to public opinion or the judicial system.

This definition of "authoritarian" applies to everybody. And literally none of the leaders of the Soviet union or the dprk qualify as dictators according to your definition either lmfao.

Please, please read State and Revolution. There are a lot of confusions that you have that that reading would do a lot to clear up. You have no historical materialist understanding of the state and frankly I think a lot of the disagreements that you have are not in actuality disagreements on principles but of confusion on the topic.