Like, you can point out various flaws in systems, in logic, in the definition of "insurance."
The central point of debate stems from this, though: Some people think that, no matter what health issue occurs, you should never be in danger of declaring bankruptcy due to medical costs.
You just SHOULDN'T. And it's not some theoretical, wouldn't-it-be-nice-if idea, it's a concept that has taken hold, and worked, in many other countries.