I would like to thank you OP for all the work you and your colleagues do.
In the NHS, demand is infinite and resources are finite. So any intervention is like trying to 'square the circle'.
"People's expectations of life are completely out of kilter.
People genuinely seem to think that life is about feeling happy all of the time and having100% health."
^ this x 100.
People naturally get sick and eventually die. That's life. Medicine only delays the inevitable. Some people can't accept that.
We have eradicated most of the worst diseases (either by better hygiene, drugs or vaccinations) polio, smallpox, TB and syphilis are almost unknown in UK.
Instead we have self-inflicted health problems caused by obesity, alcohol & drug misuse, smoking, lack of exercise and elective cosmetic procedures.
We have a 'nanny state' mentality in this country which promotes a culture of victimhood and entitlement. This leaves the OP and other Health Workers spending their working days 'firefighting', and getting 'burned out'.
Before we had a Lockdown in response to the Covid Crisis people were berating the government for not intervening, "We need stronger measures, this government is murdering our elderly and vulnerable, they just don't care, why don't they do something?!"
When the government did intervene and we had a lockdown, there were cries of "This government is taking away our civil liberties/freedom, it's destroying our mental health, social life, affecting our kids education, no-one in Whitehall is going to tell me what to do !"
I wish I knew what the answer was. The only thing I'm sure of it that I'm glad I'm not in OP's shoes right now.......