I think the Americans are in a tough spot because a decent, moral single-payer system would leave the majority of middle-class workers with slightly worse medical care.
And while I’d be happy to enumerate the massive benefits you gain for the loss of a few things, people tend to feel those few things lost vastly more strongly than what they gain.
Let me take a personal example: As a Canadian, my mother had to wait two months for an MRI for a disabling, but not life-threatening problem, because the MRI was likely not useful. It turned out that in her case, it was, and it was the key to allow her to walk once again.
This delay was the right decision, because the benefits of a low-cost health system with this sort of rationing allow us to offer medical care to all Canadians.
However, if I’d had personal experience with the US system, I doubt I’d have that perspective. Because I’m middle-class, I’d be considering that under my previous medical care this sort of delay would have been nearly unthinkable.
Rather than contemplate the fact that I don’t have to worry about switching jobs, or pre-existing conditions, or most importantly of all, for much the same costs as I was paying, I’m probably covering another family that was doing without, I’d be dwelling on the fact that under the old system, my mother wouldn’t have suffered months of pain, forgetting the fact that the MRI only had probably about a 5% chance of finding anything useful.
I, like most people, would be dwelling on what I lost.
Now, eventually the American health-care system might become so terrible for those in the median+ income bracket that they’d accept the losses that come with single payer. But honestly, I don’t see it in the near term.
The Americans who vote in the highest percentages would make whoever pushed this through pay in spades for a generation. Of course, a generation later, Americans would wonder how on earth their ancestors stomached the health-care system the US has now. But I don’t see politicians volunteering to sacrifice their career today so that they’ll be heroes 25 years after they’re dead.
America is in a “its pretty good for a significant number of voters” trap, and traps like those can last generations. My sympathies to our cousins to the South.