Not on a theoretical level, but how would you practically have to pay costs, access specialist doctors?
In the UK the cost of healthcare is included in a tax called National Insurance, it’s about 10% of wages. It can be thought of mostly as emergency use only. Mental health and minor ailments are not treated. If you want that kind of service you need to go private and most people cannot afford that so they go untreated. I know a newly qualified doctor who cannot find a job despite there being a shortage of doctors.
On the plus side, we do have a brand new aircraft carrier and a royal family.
It doesn’t really matter, but worth knowing, only a small amount of your national insurance goes toward NHS costs. The NHS is primarily funded by general taxation. Your National Insurance contributions largely go to paying for state pensions.
As an American, that’s a way higher tax than I expected. Does everyone pay it, even people earning under a certain threshold? In the US we have social security and Medicare that everyone has to pay.