Modern arguments for communism?

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2. Law and order = protecting private propery to a large extent.

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So since there is no private property, there is no need to provide law and order? What happens when I begin to suffer from some bizarre psychological disorder and I take an AK-47 and slaughter everyone in the townsquare? Who stops me? There are no gun laws nor any police, since there is no government, but surely there is a need to provide law and order...?