Regarding why they ban private tutoring I think many people are not giving birth in China because it takes lot of money to raise children and private tutoring is supposed to be one reason.
First of all people should know that CCP already realize they are mostly alone in this world so they need to gear up their technology, become more independent, increase domestic consumption, drive innovations etc.. Playing games / Celebrities, Gig Economy, 996 is not helpful to achieve CCP long term goals.In democracy politicians mostly have only short terms goals so that they can appease the mass. But in China CCP is eternal and it doesn't need to appease the mass.
Also if west want to crackdown on certain person it can bring its own reason as we can see with Julian Assange case.
"Do you think that a one party state that locks up ethnic minorities, tortures them, uses them for slave labour is somehow superior to democracy, free press, rule of law and property rights?"
Yea I think that is really bad part of CCP. But AFAIK since 2019 they have relaxed their rules in ethnic minorities[1]
[1]: https://apnews.com/article/coronavirus-pandemic-lifestyle-ch...