Nitpicking
The article says "literal dictatorship of the proletariat," the dictatorship of the proletariat is always literal, just not of one person, but by the class as a whole.
The state exists as a tool to be utilized by whichever class holds political power, to enforce its will upon everybody else. Under capitalism, it is the bourgeois class via the dictatorship of the bourgeoisie which enforce their will upon everybody else. Under socialism, it is the dictatorship of the proletariat where the proletariat, the working class enforces their will. The state essentially exists as a tool of the ruling class to enforce its will upon the non-ruling class.
All class society is dictatorship. Capitalism is the dictatorship of the bourgeoisie, socialism is the dictatorship of the proletariat. Dictatorship, not always in the liberal, absolute sense, however, also not metaphorical either. These concepts refer to when a certain class holds political power, the dictatorship of the bourgeoisie refers to when the bourgeois class holds political power i.e. in America. The dictatorship of the proletariat refers to when the working class holds political power and has influence over government i.e. in the Soviet Union. The dictatorship of the proletariat is the most democratic in actuality.
The dictatorship of the proletariat - a radical form of democracy by and for the working class
Again, this concept does not refer to an absolute dictatorship by one individual but a class dictatorship OF the proletariat, capitalism is the dictatorship of the bourgeoisie as the bourgeois class hold absolute political power over society, socialism is the dictatorship of the proletariat where the working class AS A WHOLE hold power.
"Between capitalist and communist society there lies the period of revolutionary transportation of the one into the other.
Corresponding to this is also a political transition period in which the state can be nothing but the revolutionary dictatorship of the proletariat." - Karl Marx
"Hence the main three aspects of the dictatorship of the proletariat.
1) The utilisation of the rule of the proletariat for the suppression of the exploiters, for the defence of the country, for the consolidation of the ties with the proletarians of other lands, and for the development and victory of the revolution in all countries.
2) The utilisation of the rule of the proletariat in order to detach the labouring and exploited masses once and for all from the bourgeoisie, to consolidate the alliance of the proletariat with these masses, to draw these masses into the work of socialist construction, and to ensure the state leadership of these masses by the proletariat. 3) The utilisation of the rule of the proletariat for the organisation of socialism, for the abolition of classes, for the transition to a society without classes, to a communist society.
The proletarian dictatorship is a combination of all these three aspects. No single one of these aspects can be advanced as the sole characteristic feature of the dictatorship of the proletariat. On the other hand, in the circumstances of capitalist encirclement, the absence of even one of these features is sufficient for the dictatorship of the proletariat to cease being. Therefore, not one of these three aspects can be omitted without running the risk of distorting the concept of the dictatorship of the proletariat. Only all of these three aspects taken together give us the complete and finished concept of the dictatorship of the proletariat." - Stalin
--Hoxha Cat
The Soviet Union and Socialist Albania were good examples of this as well, you might say "but they had leaders," but the people themselves were rulers as it was the dictatorship of the proletariat. -- Hoxha Cat