The issue is when public health services were set up, the situation was miles apart from what we have today. They were set up to adequately provide for babies being born, people dying and fairly simple surgery that really didn't use much technology apart from a simple standard equipment, X-rays and medicines that were standard and fairly cheap. You got a lot of bang for your buck back then.
Nowadays, we have babies being born with complex medical and surgical conditions that would have simply be held for minutes/hours/day or so until they died in the original public system; complex operations performed by surgical robotics which costs a shit tonne; we have the technology to treat many things that we were not able to treat in the past; we have expensive specialised medications that cost a lot as their scientific development costs a shit tonne and companies want to recoup this and make a profit in order to make development of more medicines we need possible. All of this, people would have just died when public health systems were initially set up, so the cost was essentially a bed where there could be some hand holding and simple pain relief. In proportion, public health systems are now being expected to do everything modern medical advancements allow, but basically with a similar budget to when the system started (when you allow for monetary differences over time). This can't work. It doesn't work. It's not working.
Also, people's expectations have changed drastically since inception. The service people demand now of a health service is vastly different.
While everyone says they would be happy for the system to receive more, all hands are firmly under the table when it comes to paying additional tax to finance this. Yes, there is waste and a fuck tonne of red tape that adds nothing, yes that should be addressed but like any public service, good luck with that.
Monty, as for you being able to manage your household budget, so why can't the NHS manage theirs? That's because they are nothing alike. I can't even believe this was an analogy.