Adding quotes for reference:

“The Russian revolutionaries believed that the international struggle for socialism could be started in Russia—but that it could only be finished after an international socialist revolution. A wave of upheavals did sweep across Europe following the Russian Revolution and the end of the First World War, toppling monarchies in Germany and the Austro-Hungarian empire and shaking many other societies. But workers didn’t succeed in taking power anywhere else for any length of time. So the Russian Revolution was left isolated. In these desperate circumstances, Russia’s shattered working class couldn’t exercise power through workers’ councils. More and more, decisions were made by a group of state bureaucrats. At first, the aim was to keep the workers’ state alive until help came in the form of international revolution. But eventually, as the hope of revolution abroad faded, the leading figure in the bureaucracy, Joseph Stalin, and his allies began to eliminate any and all opposition to their rule—and started making decisions on the basis of how best to protect and increase their own power. Though continuing to use the rhetoric of socialism, they began to take back every gain won in the revolution—without exception.” / “To finally consolidate power, Stalin had to murder or hound into exile every single surviving leader of the 1917 revolution. Russia under Stalin became the opposite of the workers’ state of 1917. Though they mouthed socialist phrases, Stalin and the thugs who followed him ran a dictatorship in which workers were every bit as exploited as in Western-style capitalist countries.” / “…The popular character of the Russian Revolution is also clear from looking at its initial accomplishments. The revolution put an end to Russia’s participation in the First World War—a slaughter that left millions of workers dead in a conflict over which major powers would dominate the globe. Russia’s entry into the war had been accompanied by a wave of patriotic frenzy, but masses of Russians came to reject the slaughter through bitter experience. The soldiers that the tsar depended on to defend his rule changed sides and joined the revolution—a decisive step in Russia, as it has been in all revolutions. The Russian Revolution also dismantled the tsar’s empire—what Lenin called a “prison-house” of nations that suffered for years under tsarist tyranny. These nations were given the unconditional right to self-determination. The tsar had used the most vicious anti-Semitism to prop up his rule—after the revolution, Jews led the workers’ councils in Russia’s two biggest cities. Laws outlawing homosexuality were repealed. Abortion was legalized and made available on demand. And the revolution started to remove the age-old burden of “women’s work” in the family by organizing socialized child care and communal kitchens and laundries. But just listing the proclamations doesn’t do justice to the reality of workers’ power. Russia was a society in the process of being remade from the bottom up. In the factories, workers began to take charge of production. The country’s vast peasantry took over the land of the big landowners. In city neighborhoods, people organized all sorts of communal services. In general, decisions about the whole of society became decisions that the whole of society played a part in making. Russia became a cauldron of discussion—where the ideas of all were part of a debate about what to do. The memories of socialists who lived through the revolution are dominated by this sense of people’s horizons opening up.” / “The tragedy is that workers’ power survived for only a short time in Russia. In the years that followed 1917, the world’s major powers, including the United States, organized an invasion force that fought alongside the dregs of tsarist society—ex-generals, aristocrats, and assorted hangers-on— in a civil war against the new workers’ state. The revolution survived this assault, but at a terrible price. By 1922, as a result of the civil war, famine stalked Russia, and the working class—the class that made the Russian Revolution—was decimated.” (from the book “The Case For Socialism” by Alan Maass)

“Partisans of the free market point to the failure of Soviet planning as a reason to reject, out of hand, any idea of an organized economy. Without entering the discussion on the achievements and miseries of the Soviet experience, it was obviously a form of dictatorship over needs, to use the expression of György Márkus and his friends in the Budapest School: a nondemocratic and authoritarian system that gave a monopoly over all decisions to a small oligarchy of techno-bureaucrats. It was not planning itself that led to dictatorship, but the growing limitations on democracy in the Soviet state and, after Lenin’s death, the establishment of a totalitarian bureaucratic power, which led to an increasingly undemocratic and authoritarian system of planning. If socialism is defined as control by the workers and the population in general over the process of production, the Soviet Union under Stalin and his successors was a far cry from it. The failure of the USSR illustrates the limits and contradictions of bureaucratic planning, which is inevitably inefficient and arbitrary: it cannot be used as an argument against democratic planning. The socialist conception of planning is nothing other than the radical democratization of economy: If political decisions are not to be left to a small elite of rulers, why should not the same principle apply to economic decisions?” / “Socialist planning must be grounded on a democratic and pluralist debate at all the levels where decisions are to be made.” (from “Ecosocialism: A Radical Alternative To Capitalist Catastrophe” by Michael Löwy)