ummmmm......the USA is/was not a Democracy.
It is/was a Constitutional Republic where we elect folks to Represent us. Most of the time, rather poorly.
The Union Leadership will sell out the members as fast as they can. Even the lawyers given that they need a license to practice and it would be a crying shame if they were disbarred.
This is pretty simple. One of these shots got approval. Getting that shot is a condition of employment. File your exemptions, sue, whatever you want. Shots are a condition of employment. Shots are a condition of being considered for a job.
You don’t like it? Resign. The DOJ will see you in court. You better have some serious money stashed away because we’ll bury you in paperwork until you go away.
You do not understand.
New employees, of course, can be subject to any requirements—no matter how crazy or intrusive.
But—existing employees are covered by a union contract which states the terms and conditions of employment.
Those terms were negotiated (often for months) and affect both management and labor.
If _either_ party unilaterally violates the contract, the other party can take them to court.
So—any issue that cannot be resolved will ultimately go to the SC.
I am predicting the SC will uphold the AFGE contract by a 9-0 vote, because if they fail to do so it will invalidate every single union contract in the entire country.
That is _not_ going to happen in the real world.