Ethnic cleansing 2020.
The article says nothing about ethnic cleansing. In fact, it contradicts this statement
If you read the linked report:
"New local government data from Yarkand (Xinjiang) shows over 10,000 mostly Uyghur children in “hardship” due to one or both parents detained."
"About 1,000 of these children have both parents in detention. A number of them have been put into state orphanages, some of which are directly next to schools."
So 1 out of 10 of these have both patents living in some kind of facility. 9 out of 10 have one parent living in some kind of facility. This mean that only some of the Uighurs are detained in facilities. Also, BBC made a documentary about the re-education camps that clearly shows that the people there go home to their village and families.
1000 children having both parents in some kind of facility? There are 12 000 000 Uighurs in Xinjiang, and most of the adult Uighurs have 2 or 3 children as Ughurs can have as many children they want. (The one child system is only Han Chinese) So maybe 300 families and 600 adults where most of them study in re-education schools where they go home at the weekends and are free to leave when they have passed the exams. Doesn't seem like a very big percentage. So is there an ethnic cleaning going on? Nothing here points to that.
But in some small places all over China, getting a regular job becomes more difficult and when some of them never had a chance to go to school, so the Chinese government try to offer these people an education and something they can do to earn a living on. So this kind of school is everywhere in China, not only in Xinjiang, and it has nothing to do with ethnicity if you can stay there or not.
Over one million people imprisoned in camps
This figure is not mentioned in the article. However, the original report mention:
"The number of students in Xinjiang who live in boarding facilities grew by over 380,000 between 2017 and 2019, from about 500,000 to just below 900,000."
Most students in whole China live in boarding facilities. And also, most facilities have a very high security. Even most High Schools are surrounded by a wall and have guards. So the report just say that 900,000 people in Xinjiang are study in schools, han Chinese, and different minorities including Uighur.
Also from the report that Guardian based the article on: "A June 2018 notice issued by the Xinjiang Education Department proclaimed that by the end of that year, the region’s 2.94 million students in mandatory education (grades 1–9) were expected to have a fully Chinese-medium language education."
Giving people an education doesn't sound as an ethnic cleansing.