There is a question that puzzled people.
How is it that ordinary, civilised, decent human beings participated in rounding up, arresting, incarcerating and shipping to extermination camps, other ordinary, civilised, decent human beings?
One answer is that you put them in an environment where it is normalised, and you organise things so that they each only contribute one part to the process.
"I'm a policeman, all I did was arrest people on the list."
"I'm a local government officer, all I did was identify local residents and put them on a list"
"I'm a train driver, all I did was drive the train"
"I'm doing my National Service, all I did was obey orders"
"I'm a builder, all I did was build a concrete room with steel doors and hatches in the ceiling"
"I'm an engineer, all I did was design a high-volume, low cost, mass cremation furnace"
They will generally behave with whatever cruelty and inhumanity is expected of them.
https://en.wikipedia.org/wiki/Stanford_prison_experiment
If you look at the nurses and care assistants in any home or hospital, you will find that most of them entered the profession with the best of intentions. But then:
"You have fifty people to wash and dress between 06:00 and 06:30"
"You have fifty people to feed betwen 12:00 and 13:00"
"You have 100 people to look after on night shift. About half of them are confused and incontinent. There is no-one to help you. If the nurse on the next ward is ill or absent, you will look after 200 people. You will take your meal breaks when there are quiet times."
https://www.dailymail.co.uk/health/article-132342/Hospital-horrors-revealed.html
"You will be paid National Minimum Wage but only for the time you spend with patients. You will not be paid for time travelling between patients. You will work a 12 hour shift and you will be expected to wash, dress, toilet and feed 60 people. You will only receive 8 hours pay"
The system is designed so that honest, decent, sincere, caring people cannot possibly perform their duties and treat their charges with humanity.
"I worked in a Policy Research Group, all I did was write a paper saying that Public Services should be run more efficiently at lower cost"
"I was a Prime Minister, all I did was promise to cut taxes"
"I was a voter, all I did was vote Conservative"
"I was an MP, all I did was vote for Public Spending Cuts"
"I was the Secretary of State for Health, all I did was set targets"
"I was the Regional NHS Director, all I did was set the staffing levels within the budgets we were allocated
"I was the hospital manager, all I did was allocate staff according to the approved levels"
The minions are broken down and crushed. It is impossible for them to do what is required. Some of them will learn to hate their charges and lay the blame on them. Some will form the opinion that the old, the sick, and the disabled should be put to death, by one means or another.
https://www.bbc.co.uk/news/uk-engla...tal-deaths&link_location=live-reporting-story
https://www.bbc.co.uk/news/uk-england-44547788
Others will achieve the same effect by lack of care.
https://www.bbc.co.uk/news/uk-england-leicestershire-47693215