To add- your anger, frustration at the NHS, is real and valid. I wasn't as much angry at the medical providers but I didn't understand why my father didn't have my BPD mother hospitalized.
My feelings towards my father were mixed. On one hand, I was very attached to him, and credit him for our well being and for being our most stable parent. I also understood he was dealing with a difficult situation. In addition, I didn't understand why he seemed to allow and enable BPD mother's behaviot. I had an idea of what should have been done and why didn't he do it, similarly like you feel about the NHS not doing what should have been done.
That was until BPD mother's elder years when I did have input with the POA. I spoke with her medical team, her caregivers, the hospital staff when she was there, the assisted living and nursing home staff and when it came down to it- no matter what the plan, if she didn't agree to it or cooperate, nobody could do much for her. I think my father probably tried as well, but he couldn't do much either.
Her behavior also wasn't as apparent to health care providers when she was living on her own at home. BPD mother could present well in the office during a visit. It was when she needed assistance and had caregivers, was in assisted living, who were with her for long hours that they saw the bigger picture.
The gap in assisted living and nursing home care here is that it is based on a person's physical need for assistance in daily tasks, like dressing, bathing, eating. BPD mother did not need as much assistance in these tasks but emotionally, she needed more supervision than she qualified for.
For me, working through the anger and frustration at what I thought wasn't doing enough for her was a process, a process you also will be working through. However this goes, I think it's important to have some boundaries on what you can do, are willing to do, and also how to protect your own emotional well being.
I will share two sources that illustrate the dilemma.
https://bpdfamily.com/message_board/index.php?topic=65164.0;all
This exerpt from a book- not exactly the same situation but similar dynamics and the daughter's sadness and frustration.
https://slate.com/technology/2022/03/mentally-ill-parent-elder-care-boundaries-liz-scheier.html
I don't suggest you "let go" or not try- I think in trying, we learn what we can do and what seems out of our control.



