That only because that spend is misattributed. Much of the money spent on US "healthcare" ends up wasted on admin in billings, collections and haggling with insurance co... Aka, not healthcare. I'd be very interested to see American numbers without the absolutely insane admin overhead...

unfortunately, many of the people who are in favor of providing more financial resources to patients are also in favor of a more extensive regulatory framework, so the two ideas don't get balanced.