You know nothing about socialist countries of the twentieth century, other than your state-fed arbitrary propaganda.
I am not denying that those states had oppressive regimes. But you discount the systems that they had grown out of. In the great depression most western countries in Europe had a horrible life for the common man. In the industrial upheaval in around the late nineteenth century, and early twentieth century, people literally worked themselves to death due to starvation, sickness (c.f. present day health care systems!!!), and bloody-handed treatment by police if organized resistance was suspected.
Those systems made people really look to communism, and in Russia the socialist revolution wouldn't have won, but it had the support of the people, because in those years their only hope of a decent life was via communist rule.
So... Stalin killed 30 million, Lenin... well, Lenin had to contend with the invading armies of foreign powers so his "killing" is not really directly oppression-related. In my country maybe 1000-5000 people died due to political reasons in the communist times. I don't have exact figures, because I went to school there in the sixties, and the curriculum did not cover that. Whether Stalin killed those thirty million was due to design, or due to a huge crop failure in consecutive years, is debatable. Mostly Ukranians died, and they did because the food that was very scarce was given to ethnic Russians. I admit, there were politically induced murders, everyone read the Gulag Archipelago by Solzhenyitsin. Most of those oppressed, be they eventually murdered or not, were not punished due to the regime, but due to the paranoia and madness of Stalin. He was worse than Hitler; he killed due to his paranoia, much like Nero and Caligula, not due to some evil political idealism, like Hitler.
But the oppression by governments in Eastern Europe was still a system that provided a heavenly existence to the largest segment of the population IN COMPARISON with the pre-war and turn-of the century conditions. They did not drive cars like people in America in the sixties, they did not have colour tvs like Germans in the seventies, they did not own property like anyone could in the west in the eighties, but they had food, clothing, transportation, all affordable, and free schooling and free HEALTHCARE. None of that was enjoyed by the great majority of the peoples of those countries before the communist takeover.