Cuba has higher literacy rates and life expectancy than the US, the USSR doubled life expectancy compared to Tsarist Russia and went from Feudalism style farming to space in less than a century. Let there be no misconception, none of these states were ideal, and all had a good deal of issues, but what you’re describing just didn’t exist. All of them improved upon previous conditions.
Venezuela is majority privatized, it’s a Capitalist state anyways.