There is nothing wrong with criticizing the Communist Party of China.
There is, OTOH, something very wrong with equating Chinese national HN users with the Communist Party of China, and your comment that dang responded to about nationalistic attacks was explictly directed at the former, not the latter, and defending it as the latter draws an inappropriate equivalence.
By the way, I'm not saying this out of any political position on the underlying topics (nor is that any sort of claim to neutrality). I'm saying this because I'm close enough to the data to start to see how basic decency is being violated by a lot of this stuff, and when you see that, you start to feel sick.