Not a single communist is “enamored by” the Russian Federation, we all wish the USSR had never dissolved. Communists do tend to support China, as it’s the world’s most developed socialist country. Further, all states are “authoritarian,” in that all states are means by which one class exerts its authority over the others. Communists support the working class being in charge of that authority, all communists (unless you count anarchists) support the use of the state against capitalists and fascists, and the majority of practicing communists support socialist states.