> if a private business with all the incentive in the world can't figure out how to lower healthcare costs
Of course they can. But why on earth would they? Health insurers are mandated by law to not exceed certain profit margins, so the only/best way to make more money is not by increasing volume and lowering margin, it's by increasing costs for your target captive market. That flows down the chain, you increase the allowed costs, so providers increase to meet that (why wouldn't they?) and the only person left hurting is the policy holder (and their employer, paying some portion of it).
> unpersuasive. It's not a serious argument
Your argument amounts to "this doesn't make sense, why wouldn't companies look to lower costs" when lowering costs in the health insurance mathematically equals lowering your profits.
What's not a serious argument is this constant belief that America is unique. "We're bigger than other countries", "our population density is different", all these things.
But you're going to need to do better than a pithy "it's not a serious argument" with no substance behind it when acknowledging that the entirety of the developed world hasn't "solved" healthcare but does a better job at making it equitable and accesible to more, at a lower cost, with oftentimes better outcomes (looked at our mortality rates around childbirth, lately?). It's not about the quality of care, it's about a system that revolves around making more money, not patient care. Another simple example, my insurer, Aetna, simply refuses to authorize 90-day (or rather, anything beyond 30-day) prescriptions from any pharmacy except the pharmacy they wholly own. Why? That doesn't provide patient benefit. There's no discount - the charged amount for the 90-day script is 3x the cost of the 30-day. It provides a worse experience for the patient, removing flexibility for them. It doesn't change their pharmacy network - they're still serving pharmacies all over, just for a subset of patient needs.
No, it's just about money. Again, there's near no incentive in the current US healthcare market to compete on price. And that's why US healthcare is ~20% of GDP, double, if not triple the cost of other developed nations.