Unclear how different this is from the draft.
The draft - get sent to war against your will, potentially die, get maimed or get tortured.
This - get the vaccine tens of millions of people around the world have already got, or work remotely (or very worst case give up your cushy tech job and find another cushy tech job).
AFAIK these companies are still at-will private employers and vaccination status is not a protected class. So they can fire anyone they want including all the anti-vaxxers, at any time they want, for whatever reason they want including vaccination status.
also, remember that this is not the government. your employer can ask you to do anything (within limits) and invoke at-will employment when you don’t want to do it. I love capitalism!
Do we as a country feel like COVID is an existential threat? I’m definitely concerned about how we handle future, potentially worse pandemics before we figure out where we draw these lines and what appropriate trade offs are for public health.
What we're doing now is proving the efficacy of using a mRNA vaccine platform to rapidly deal with a pandemic at a speed that has never been done before. So far the vaccine has worked great. Now we need to establish global distribution chains and make sure that in the event of an even worse pandemic we have options to vaccinate against it.