One major existing problem is the labour rights of Mingong (migrant workers). I would like the explain but it has such a complicated history background as well as a changing development in recent years, it will probably take me a few hours to type a reasonably comprehensive review of it. (Let alone looking for the Eng translation for the tons of Chinese jargons involved.) The English wiki article on it is precise but way too short to gain a dialectical understanding of it.

The difficulties for foreigner to understand the downsides of Chinese development is that there are not many English articles written about them from a dialectical perspective. These issues are either unknown to the West or very often written by ill-intended liberal journalists who refuse to explain to the readers neither the historical causes of the problem nor the step-by-step reform that has been taking place.

As a Chinese myself I find it quite ironic that many foreigners in GZD have an even higher opinion of China than Chinese themselves. The average Chinese worker is likely to work more hours per week, receive a smaller wage and benefits, and have a standard of living lower than that of a similar worker in Denmark or Sweden. CPC has been very clear about improving the lives of common people but there still exists three major contradictions it has to struggle against: 1) the materially inevitable need to exploiting surplus value in order to achieve rapid capital accumulation; 2) the fact that China is situated in a capitalist world economy and it has to compete with other countries in a capitalist market; 3) the internal resistance from local vested interests, bureaucrats, the bourgeoisie, and sometimes the middle class, against properly implementing the reform directed by the central government. China is very far from a "totalitarian" monolith where everything Xi says goes. That's why it always take time for improvement and the road is not always smooth.

Nonetheless most Chinese are hopeful about their country not because we're already the best country in the world, but that they believe, justifiably, China will develop into a better country than any of the Western ones. In China, having a developmental, dialectical perspective makes you a leftist; believing in making static comparison with Western countries makes you a self-hating liberal. In general I just hope Westerners who over-romanticise China don't just one day get "disillusioned" and turn their love into hate overnight like how many Western leftists did in the 60s with Soviet Union.