You mean the 'tankie triad'? I'm pretty sure I learned that on hexbear. Why don't you try posting it?

They have "capitalist elements" because it's a long transition from a capitalist economic system to a communist classless society, the difference is who is directing the means of production and to what end the state is used for. And plenty of communists complain about China all the time. According to the Hurun Global Rich List China has 823 billionaires. I don't know what point you're trying to make.