>Communism is a subset of socialism
and
> Socialism always results in tyranny.
but your only examples of tyranny are from communist regimes.
Does that mean that:
> Square is a subset of rectangle
so
>rectangle always results in four right angles
given that my only examples of rectangles are squares?
Saying socialism /always/ does anything, and then listing only examples from a specific subset of socialism is plainly incorrect.
By your own admission:
>Humans will always create a hierarchy
Socialism could not have been tested, because it would require social ownership of the production of goods, and co-operative management of those resources. Hierarchy means they did not have co-operative management of resources, they had hierarchical management of resources.