We spend a much smaller share of GDP on health than European and the western countries (this is combined NHS and private money)
More money will have to be spent.
So the choice is do you want this to be private money or from taxation?
Adding up all the IVF, health tourists, well paid bank staff and alleged breasts enlargements will not add up to anywhere near enough money to close the gap with other countries.
So taxation or private spending.
My fear is that as people spend more on private healthcare they start to think " well, why should I pay anything to the NHS if I don't use it?"
The sense of solidarity and pooled sharing of risk breaks down.
But who pays for healthcare for someone with a chronic, life long illness? A child born with cystic fibrosis? No insurer would touch them.
What about those with significant mental health problems which mean they are unable to make rational choices? Insurers very very rarely cover mental health treatment at all, given they are often life long conditions.
the very sickest and most expensive patients have to be paid for by the state at the point where the healthiest don't qualify for assistance and so no longer feel like the NHS is part of their social fabric.
I have private healthcare but I would happily pay another 2pc in tax to fully fund an NHS.