The soviet union wasn't run by a dictator. To the contrary, the USSR brought dramatic democratization to society. First-hand accounts from Statesian journalist Anna Louise Strong in her book This Soviet World describe soviet elections and factory councils in action. Statesian Pat Sloan even wrote Soviet Democracy to describe in detail the system the soviets had built for curious Statesians to read about, and today we have Professor Roland Boer's Socialism in Power: On the History and Theory of Socialist Governance to reference.

When it comes to social progressivism, the soviet union was among the best out of their peers, so instead we must look at who was actually repressed outside of the norm. In the USSR, it was the capitalist class, the kulaks, the fascists who were repressed. This is out of necessity for any socialist state. When it comes to working class freedoms, however, the soviet union represented a dramatic expansion. Soviet progressivism was documented quite well in Albert Syzmanski's Human Rights in the Soviet Union.

The soviet union did not "bleed dry" their member-states, or anyone else. As a socialist economy, it did not need to run on the same mechanisms of capital expansion the west does. Instead, all socialist countries saw dramatic growth over time, and riding key life metrics.