You did not answer my question. Let me ask in the form of metaphor, that might help. Do you believe capitalism is a sinking ship, where progressives can only patch holes to slow it sinking, or do you believe capitalism is a ship that is off-course, and that progressives can steer it towards the right direction? Which is it? I believe the former, but it's unclear if you believe the latter.
As for China, it's a democratic country run by popular councils that ladder upwards. For how this works in detail, as well as an overview of how socialist democracy has evolved over time and the reasons why, I recommend Socialism in Power: On the History and Theory of Socialist Governance by professor Roland Boer. Who is it that China is mass-murdering, by the way?
I'm genuinely trying to come to an understanding with your thought process. I don't think we will agree, but I think we can find common ground.