They estimate 20 and 43 million died, if not caused by, then exacerbated by policies implemented under Mao.
"Since June 2015, all Wikipedias redirect HTTP requests to the corresponding HTTPS addresses, thereby making encryption mandatory for all users. As a result, Chinese censors cannot see which specific pages an individual is viewing, and therefore cannot block a specific subset of pages (such as Ai Weiwei or Tiananmen Square) as they did in past years. As a result, Beijing chose to block the whole Chinese Wikipedia"
https://www.independent.co.uk/news/world/asia/china-re-educa...
The estimated number of inmates keeps growing by the week. I think it's more accurate to call them re-education camps, but it's an issue that I wish more countries would push China on. I don't get why our (German) government spent so much time on negotiating the Liu Xiaobo issue instead.