No one should have to live like this

[TwilightZone]

3. This is more about "employment at-will" than healthcare.

Healthcare is incidental to the story, of course, but the ability to fire anyone for literally any (or, effectively, no) reason thanks to decades of the right pushing laws that undermine job security is the real culprit. Without the latter, the former doesn't become an issue in this case. Even with universal healthcare, this person would likely still be without a job and homeless.