I know some doctors in affected areas. The hospitals were overwhelmed before any unvaccinated firings happened. The staff are incredibly exhausted, angry, and demoralized. Many went through this before with the first big wave, and not only are they back to insane hours and filling body bags, but now they have to deal with the awareness that it's unnecessary and avoidable.
If you'd like to confirm, dig up some medical staff on Twitter. "MedTwitter" is a thing. (But don't search based on keywords like "vaccine", because you will find what you seek. It'll be massively biased in a pro-vaccine direction. Find the medical professionals first, then see what they're saying.)
I think the question of whether to allow unvaccinated staff is a tricky one. I don't think it should be decided because some people are pissed off at vaccine resisters, and I haven't seen any strong evidence that it is. (I haven't looked, either.) Unvaccinated staff put their patients and coworkers at risk if they work, or if they don't work. Someone has to do the math.
Similarly for government intervention. It really bothers me when the government mandates anything. But I think of it like this:
Let's say I'm in a community that is fond of keeping tigers as pets. 5% of the population dies every year from wild tiger attacks. Many community members insist on letting their tigers be off-leash, calling it a fundamental part of their identity as tiger owners. Off-leash tigers kill 50% of the (remaining) human population each year.
I don't like leashing my tiger. But over half the people I know are dead. I would gather the community together and say, sorry guys, but we're going to have to agree to keep our kitties on leashes, no matter how friendly we think they are. And we're going to have to back up that agreement with expulsion, imprisonment, or taking tigers away. It sucks, but the risk is too high.
55% annual death rate is insanely high, but it makes the point that there is a number at which community (aka government) mandates are the right thing to do. We can argue at where the number ought to be, but not whether or not there is a number.
Right now, there are a lot of people dying, and a lot of "dry wood" that the virus is burning through. I think it's time to wet some of that fuel, whether it wants to get wet or not. (And even though we know some of that wet wood is still gonna burn.)