What they do s sedate them so heavily that they lose interest in eating, put a diaper on them and secure them to a wheel chair. They go down hill really fast then because they lose all sense of life around them. It is not unusual to hear patients begging to be allowed to go home from these places, where they are usually involuntarily committed.
As someone who just lost his father 6 weeks ago to this terrible disease, I take serious issue with your characterization. If that is the nursing home care one of your loved ones encountered and you did nothing it is on you. The care my father received was compassionate up until his final minute.
Unfortunately for many there is no home to go home to. They cannot take care of themselves living alone, they don’t have enough money for a full time in-home caregiver and they either have no family or they have no family willing or able to take them in.
It’s a horrible situation.