The Argentine constitution states that healthcare is a human right. This is the philosophy on which the country operates. Putting millions off of healthcare will never be a great thing.
I agree that their financials are a mess. The problem is really incompetence more than anything. The NIMBY problem exists in its own special level there and basically those with don’t want to support those without, which is how they are voting. It’s an empathy problem.
You can certainly have a single payer system work efficiently, many countries do. It is not the cause of Argentina’s problems.