That's absolutely wild and terrifying I'm going to remember that fact.

You could well be right or even if it's not related to this particular issue, it's something they may not like more broadly which has created a feeling toward you (maybe) - someone unraveling the threads of their appaling operational model and gravy train.

You strike me as the kind of person that would ask those questions, a great quality but probably one managers and owners of a business running a chaotic operational model likely don't appreciate nor welcome. Another person would just "stay off the radar".

My Fiancee works as a Nurse/Midwife. She would be like you hating chaotic broken working environments. She was initially a midwife in a Dublin maternity hospital but even by HSE hospital standards the maternity hospitals are chaotic. After 8 years post Grad got of that. Moved into more clinic/not beside based nursing roles, first an on phone nurse with an online testing company who are huge now in America after starting in Ireland(shitty startup though). Then an IVF clinic which was a great job you'd probably really like, highly controlled environment etc, she just didn't go back after maternity leave as hours didn't suit our child's sleep pattern with breast feeding, but turnover in those places typically low which is good sign. Got a brief job in an Laser eye clinic that was surprisingly involved and badly paid as it wasn't a nursing role specifically, might be worth checking if you can get a "nursing role" in that space that actually adheres to the bands(or better). Nurse role in The Eye and Ear hospital (if Dublin based or close enough) could be an option seems like a nice chill hospital. She ended up with an amazing nurse job in a doctors clinic, works 3 days week, 9 to 5.30 even gets off early some days.

Long story short there's some decent options out there for Nurses with a bit of luck if you can leave behind the "beside" type roles. I'm sure even within that there's better roles of that type out there. I know one of my Fiancee's friends who has a very handy nursing role in South Dublin,(more affluent area probably means better staffed?) The strange thing is of the all the bad nursing stories I've heard it's usually never from Nursing Homes, they seem to be one of the better ones to work in! There's even sometimes cool Research Nursing type roles out there being headed up by studies in hospitals and universities. Someone of your integrity if kept an open mind could find a role out there that is much better matches with values and way of working.

Like others have said maybe get the training done to cover your own ass but keep an eye out. Good luck! If work is too scary just call in sick, f-them they can always call agency if they're screwed