I think you pretty much don't - but what you can do is shift the burden of healthcare off of an employment expense so that when someone is in this terrible situation they can move to a location where they can receive better care without being concerned that they will be unable to continue receiving insurance from their employer.

The poster above is between a rock and a hard place, it's a really terrible situation to be in no matter what safety nets are in place. But the US tends to go out of its way to make things just that little extra bit terrible.