So the 850 million people taken out of abject poverty within the country over the past 45 years, given the right to no starve and to be able to feed, clothe and educate their children count for nothing?

You'll also note that Chinese citizens leave the country constantly for education, business and leisure, yet virtually all return.

Perhaps there's some missing information there. Perhaps, just perhaps, political system is irrelevant when discussing the climate crisis, and action is relevant.