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In a broad sense due to what can be stated as complexity theory, when a system of power coalesces in a smaller minority who can make decisions, unplanned and disastrous results do and did occur in the 20th century for anyone living in the USSR at the time.
Yes, the ideals were somewhat respectable however pragmatically this doesn't work if you want to have a semi-moral system for the individuals living there.

so you support anarchism?

In many ways the USSR was far better in many different ways than capitalist countries at the same time. From what I've read about the democracy it was better than the system we have even today in the United States (even ignoring the fact that capitalism and democracy are incompatible)