Tom:
Exempt from what? This "shutdown" occurred many times during my 35+ years of Federal service (Dept. of Veterans Affairs). I don't know what you mean by exempt. Also, "a lifetime job" may be more of a myth than a benefit, unless one is a Federal judge or on the Supreme Court. True that Federal employees have some protections in the event of disciplinary action or termination that private sector doesn't offer, but private sector salaries are higher than equivalent to the Fed job now, which many years ago was not the case. Also those protections are not a guarantee if the employee's performance is truly substandard.
And as for "alleged services": mail, TSA, Air Traffic Control, medical care come immediately to mind.
I don't know about the 2000 unionized prison guards fired. Depends on how many at each prison, but I'd be worried if I worked at one or was incarcerated at one. Again, the higher ups don't know the impact of short staffing. If you are the patient, or the nurse who had to work overtime to the point of exhaustion because a certain position(s) was elimated. Or even allowed to be filled for a long time.
I'm glad I retired, to say the least. I feel for any person at any organzation who is laid off, them and those who had to fill in for them and the customers depending on them for service.
But it scares me to hear of layoffs of TSA, Air Traffic Control, any law enforcement organization, NTSB, those who keep our national parks clean and safe...so many never thought about.
We seldom fully understand the job of another, private sector or Federal. All subject to a domino effect.
Candy