That is authoritarianism. Indeed, you have a valid point, except that communism in fact only is an economic theory and does not implicate anything on other areas of government. There is no difference between a capitalist authoritarian and a communist authoritarian except that a communist actually has a story (i.e. a fairy-tale) to sell to their people.
the problem with communism in Russia has been that the minute the economy theory inevitably fails, you now have to starve the farmers, and when they don't agree with being starved you need to send them to a gulag
