In the US at least, there are needs-based high-risk insurance programs run by states that do just that. Even so, while it's not a good argument against layoffs

In the US at least, there are needs-based high-risk insurance programs run by states that do just that. Even so, while it's not a good argument against layoffs, the fact that it's even considered as such is in itself a reasonable argument against health care being tied to specific employment.