I received emergency alert messages on all of my cellphones all night last night begging for healthcare workers to register at a state website to help. Whom the power lies with is clear.

It only lies with them in collective action. Any one individual has to look after their family and doesn't have much power. Now, if they all stop working, at the same time, then they have the power and the ability to protect their families at the same time.

Remember, the stimulus bill just passed by Congress provides for arguably robust unemployment benefits for those who lose employment because of COVID, including having to quarantine to protect one’s self.

I agree collective action is the path to long term success, but these workers should not feel a gun is being held to their head by health system administration.

but you don't get unemployment payments if you're fired

I am confident your unemployment claim will be processed if you were fired for refusing to work in hazardous conditions by your health system employer, as this would qualify as wrongful termination.