I have no clue what you do for a living but if your employer is being difficult about a booster, quit, we do have employment at will and you are not entitled to that job. Go to an employer which doesn’t mandate the boost, get over it. I don’t see what the big deal is.
Look. You don’t understand healthcare apparently.
You can’t just go elsewhere to avoid this. The entire medical community is in lockstep on this.
Sure, you could uproot, but that isn’t an insubstantial undertaking. It should be a personal decision not something forced on you.
Just like learning code because you want to is better than learning it because you are forced to. Just an example.