Rendered231

I think you have a more or less biased few of the terms socialism and communism.  Communism will almost never be used by a socialist as, "when socialism goes to far."  Here are the definitions, as socialists and communists will tell you.

Socialism is worker ownership of the means of production.  This might include government ownership, depending on who you ask, but some believe that the fact government officials serve as a middle man means workers no longer own the means of production.  Compare this to worker cooperatives, where every worker owns the firm, and every worker has one vote to run the company. 

Communism is a stateless, classless, moneyless society.  Some people believe that this will take the form of a gift economy and free association, along with socialism as we've defined it.  Some believe that gift economies themselves were to flawed to use in the future.  Even communists dont believe you should share everything, because they divide private property into private and personal property, the former being used for the intent of profit and the latter simply being something you use.

State capitalism is what socialists and communists groups use whenever socialism goes to far.  State capitalism is a state taking the role of a capitalist to invest in creating socialism or communism in the future.  This means extracting surplus values from workers and owning the means of production, for the most part.  Some socialists and communists support it because they think state capitalism is necessary to reach communism or socialism.  The rest of the left calls them tankies as a derogatory term in reference to these regimes use of tanks.  

There's a common meme in leftist circles.  "Socialism is when the government does stuff.  And it's more socialism, the more stuff it does.  And if it does a real lot of stuff, its communism."  Its making fun of people who think that socialism and communism is specifically about the government.  If someone says that communism is totalitarian, you can be very sure that person is neither a socialist or communist.