"and probably many more" is an understatement. There is mass organ harvesting from Falun Gong followers [0] and God knows how many die in the Uighur concentration camps [1].
There is a 99.9% conviction rate in crimes in China [2] (which is the same as basically having no rule of law) and political prisoners seemingly 'disappear' all the time.
China are known for lying consistently about almost everything and keep a tight lid (as much as they can) on anything that would cause them to 'lose face' both within and without the country so any estimates are likely significantly low.
There is a 99.9% conviction rate in crimes in China [2] (which is the same as basically having no rule of law) and political prisoners seemingly 'disappear' all the time.
China are known for lying consistently about almost everything and keep a tight lid (as much as they can) on anything that would cause them to 'lose face' both within and without the country so any estimates are likely significantly low.
[0]:https://en.wikipedia.org/wiki/Organ_harvesting_from_Falun_Go... [1]:https://en.wikipedia.org/wiki/Xinjiang_re-education_camps [2]:https://qz.com/246696/chinas-criminal-conviction-rate-is-99-...