> What makes dollars unique is that if you inject more dollars into the free market for a good, then ceteris paribus, you will cause more of that good to be produced.
Markets don't actually work this way in practice. That's the theory, the theory rarely actually pans out. We could look at US healthcare, which is an insane mess, but it's pretty easy to argue that it's not actually a market due to insurance and opaque pricing and all the same problems. We've kind of got the worst of all worlds over here. But dental and vision care, which are closer to real markets don't actually work any better. They're still expensive, in accessible, and pretty non-responsive to price signals.
Instead, take something like food, where it's a commodity. That's a place where markets should be the cleanest and most responsive to price signals. We produce 1.6x the amount of food the world needs. And food is some thing where there's a literal cap on the ability of any individual to consume it. Our stomachs are only so big, there's literally only so much each of us can consume in a day. By market theory, prices for food should be almost negative and no one should be with out food given those facts. But that's not how it works out. As always, there are too many confounding factors and the profit motive causes rent seeking at every layer.
By market theory, there should be over production of food, which should cause everyone to have food and food producers to drop out of food production until prices rise to equilibrium where everyone has food and the people producing food have a good living.
Has that happened anywhere? No. Instead, you have corporations standing between producers and eaters finding ways to make food more expensive through value add and marketing. You have producers struggling to get by, buried under a mountain of debt, and often effictively in indentured servitude to the processors. And you have hundreds of millions of people food insecure, tens of millions even in a rich country like the US that massively overproduces food. Because markets in real life don't work according to the theory.
And that's why we can't just approach economic problems with the idea that we can just throw more markets at them. And why we have to think about when systems like single payer, for all their faults, are better than what we'd end up with through markets.
Trust me, if you'd ever had to deal with the American health care system, you would long for the Canadian one.