Which is why you should support China, as a recent Harvard Kennedy School survey found that over 93% of the Chinese people are satisfied with their central government.
https://ash.harvard.edu/files/ash/files/final_policy_brief_7.6.2020.pdf See page 3
Facts don't care about your feelings
To put things in perspective a good chunk of those 51% are ethnic Russians who'd rather enjoy the cultural/linguistic status the would have had in the USSR as opposed to the marginalisation they feel now. Very little to do with communism.
I think it's unfair to assume that's the biggest reason. I think there's a survey that's done every year or so that shows a lot of people liked the economic system better.