I don’t think there are many people who think as a whole our system is “reasonable.” Just those that recognize the “be careful what you wish for” possibility. For example, for people who always point out how efficient European single payer health care is and how much money we’d all save if we switched to it: the U.S. government is already spending more per-capita on healthcare (Medicaid, Medicare, VA, etc.) than most European countries pay for single-payer healthcare systems that covers everyone [0]. So switching everyone on private plans (or uncovered) to a single-payer system is mathematically impossible to be even close to as cheap as other countries have it. (When I say per-capita, that means dividing the costs by all residents of a country, not just those enrolled in the plan).

That doesn’t mean it wouldn’t be better than what we have now, but it’s disingenuous when people imply that all it takes is to change the “payer” and we’d magically fall in line with costs seen in Europe. The real issue is many-fold and in order to truly bring costs down its going to take a lot of sacrifices from the provider side as well. Most doctors, nurses, and others in the health care industry in Europe (and other places with single-payer systems) do not earn nearly as much as their counterparts in the U.S.

[0] https://www.commonwealthfund.org/publications/issue-briefs/2...