Any geezer with Alzheimer's should be monitored and supervised. That has nothing to do with the rights of responsible senior citizens. They aren't all suffering from dementia and they shouldn't be treated like they are.
How many visits have you paid to nursing homes recently? Do you really think that Alzheimers and/or patients with dementia are monitored VERY closely 24/7?
There is a HUGE nursing shortage, and it's getting worse, not better. Just talk to my sister who is a nurse practioner with a masters degree. She's seen it all.
I've seen it with my own eyes in the supposedly "great" hospital and rehab center where my 90 yr. old father-in-law was left unresponded to for nearly 45 minutes. I got there at 9:45pm to see how things were going after his knee replacement surgery. He was disoriented, couldn't find his glasses and his urine bag was nearly overflowing. I had to go down to the nurses station myself to ride herd on them so he would get proper care.
You are sadly mistaken if you think the nursing care is as diligent in most nursing homes as you would make it out to be.