It's easy, in this discussion, to get into the weeds and be distracted by details (like lots of people have by your "no option to go elsewhere with my £'s" remark).
If you want free at the point of healthcare, clearly you are better off in the UK than in the USA. If you want to pay for better care (like, well off middle class, not millions) then you're still better off in the UK than in the USA because we don't have perverse incentives for healthcare insurance, so the cost is lower even when you include the price of NHS services you aren't using. And if you're paying literal millions for healthcare then you ought to be paying for others' healthcare even if you aren't using it in principle.
Does it make logical sense that public healthcare should work better? That's irrelevant because, empirically, it does.
If you want free at the point of healthcare, clearly you are better off in the UK than in the USA. If you want to pay for better care (like, well off middle class, not millions) then you're still better off in the UK than in the USA because we don't have perverse incentives for healthcare insurance, so the cost is lower even when you include the price of NHS services you aren't using. And if you're paying literal millions for healthcare then you ought to be paying for others' healthcare even if you aren't using it in principle.
Does it make logical sense that public healthcare should work better? That's irrelevant because, empirically, it does.