As we can’t verify this in any meaningful extend due to - as you yourself pointed out - every country and culture being invredibly different. So why are you OK with attributing success to chinese policy but not failure?

I'm so confused by this conversation. Let's recap.

Originally, OP asked why China has billionaires if it's aiming to be socialist. I replied that the reforms that allowed billionaires also resulted in 800 million people escaping extreme poverty. WoodScientist randomly started drawing comparisons between the PRC and Taiwan, and I said that it's apples and oranges, and that I didn't see the relevance to what I had said. Then you started providing even more reasons why the comparison isn't really valid, acting as if that contradicted my position in some way, which was even more confusing. You added that you didn't like looking at other possible routes China could have gone, because it's untestable.

Now, having established that you don't like comparing China to other countries (calling it "dick measuring"), and also that you don't like comparing other historical possibilities (calling them "untestable") you're now accusing me of being unwilling to attribute failure to Chinese policy.

First of all, which failure are you talking about? There are plenty which I'm willing to acknowledge. But also, on what basis could you call any policy a success or failure? You've thrown away all your epistemology. If we discount comparisons to other places, and also discount comparisons to other possibilities, then what can we look at to determine if a given policy was a success or failure?

I see today how unjust and miserable China is despite what tiktok might paint you.

Do you? What's your point of reference for that? Some hypothetical ideal that exists only in your mind?