Alright, thanks for answering the first bit! I'll address it first, as it's foundational to the split in out analysis. I'll list a few things I believe to be true, and you can explain which you disagree with and why. I'm not forcing you or cornering you into this, you don't have to participate if you don't want to, but this will get to the meat of your disagreement with Marxists, and our disagreement with you.

1. Markets historically have a tendency towards monopoly and centralization.

2. Bigger firms not only have the advantage of having more resources, but production eventually requires larger scales as the economy itself grows, ie to bust a monopoly, rather than nationalizing it, is to set productive capacity backwards.

3. Monopoly, under capitalism, turns to enshittification, so to speak.

These are 3 basic beliefs I have, and they all combine into the belief that capitalism cannot last forever, and therefore markets outlast their progressive nature in stitching together production as they scale. This means planned economy is more efficient at this point. If you disagree with any of these, I'd love to hear how and why. Genuinely.

As for China and being a democracy, why do you say that it isn't? Where did your understanding of China's democratic institutions and government structures come from? Roland Boer may be a professor living in China, but his work is academic and trusted even by westerners trying to understand China. I didn't just link a document saying "we're democratic!" I linked a textbook that describes in-detail how and why China's institutions function the way they do. You can make up for yourself if you believe these institutions are sufficiently democratic, but they factually do work the way described in the textbook.