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Communism is a stateless, classless society, and more like a utopian end-goal to strive for. But, yeah, parties that label themselves communist tend to be of the authoritarian type. Failure of certain strategies and implementations doesn’t mean an entire ideology is bad. Democracy failed with Rome, and wasn’t implemented on a large scale again for ~1800 years; and I think most people consider democracy a pretty good system now.
For me. I think everything is physical, and there’s always a cause and effect. There is no magical non-physical consciousness. A combination of your genetics, experiences, and environment determine the “choices” you make/actions you take. Free will is an illusion, IMO.