Medical bills are overwhelmingly huge in the US. Getting rid of them would decrease the problem to simple unemployment.

Sure being unpaid for a time is bad, but you won't be massively in the red...

And this specific example, the guy is well off. Which if not for medical bills, they'd all be fine.

To reword your comment, " Something very bad is happening, but because the remedy wouldn't completely go away it's not worth doing?"

Way to twist my words. I never said it wasn’t worth doing.

Grandparent said “this is why universal healthcare exists” and I noted that it wouldn’t solve the problem. Dude still needs a job and his wife still has cancer.

that's pretty non-sequitur to the situation at hand to the point of wondering why it's being mentioned.

Why? The grandparent implies that universal healthcare would solve the person's problems. Sure it would solve the issue of health insurance, but I assume the person still needs an income to pay for everything else. So the problem still remains.