Hahahahahaha! It really really isn’t, it’s a national treasure and it’s amazing how well it runs given how numerous governments have underfunded it. Every study on international healthcare shows the NHS is near the top in every category and once you factor in the cost per person it’s the top in the world.
If you have a life threatening issue you will be seen and treated as well on the NHS as anywhere in the US, EXCEPT it won’t matter if you’re rich or poor, you’ll get the same treatment and it will work out at a literal fraction of the cost to the tax payer - insurance based and tax payer based are basically the same (cost is distributed over everyone contributing) except the government don’t arbitrarily say pay xxx thousand and the stress of “how to pay for this” is removed meaning people can focus on recovery and not on making ends meet.