As I understand it - ~30% of US federal spending is on health care. In the UK it's about 20%. Yet apparently the UK is mostly nationalised under the NHS, while in the US there is huge additional spending on private insurance. Can somebody from the US explain to me how that's the case and why American's still put up with it?
US federal budget is 23% of GDP, while UK is 44% of GDP. You can't compare fractions of the fractions directly. (Total spend is something like 11% vs 18% GDP.)
With the UK spend roughly 80:20 government:private and the US spend about 50:50.
So as percentage of GDP government spend is about the same percentage of GDP but the much bigger private spend in the US what makes the difference.