I mean...maybe? I know of few American companies that aren't going to find away to get rid of you if you're out of work for an extended period of time because of a serious illness or accident. Labor rights are pretty poorly enforced in the US, and when they are, it's often dependent on you being able to mount and survive a costly legal challenge. People tell themselves they'll be ok, but it seems more like a gamble/survivorship bias to me.

True, if you lose your job and can't get on disability you're pretty screwed.

> get insurance which won't bankrupt you in the case of a medical disaster

As I understand it (I live in Canada), you can subscribe to an insurance policy and they can refuse to give you the money for one reason or another.