That power comes from the idea that the federal employees can shut down government operations if they stop working. This administration (supposedly) wants dearly to shut down government operations, so the union doesn't have any power.
Confidently incorrect. Federal employees marked as "mission critical" cannot strike, but other federal employees can. Unions take this into account and have workers strike on-behalf of mission critical employees.
Didn't President Reagan fire almost every air traffic controller in thr 80s? Weren't they unionized as well?
My understanding is that the consequences of that decision is being felt even to this day. I only know about it because of the recent airplane accident
Military members are government employees. I imagine they would be extremely circumspect of being deployed against other government employees who were cheated by a bad-faith deal.
There is no "they". The military adheres to the law for only as long as those laws are enforced. If the US military can commit war crimes abroad and be protected from outside prosecution, there is nothing stopping them from doing the same inside the US. All it takes is for one person in charge to ignore charges in a military court, or simply not comply with a legal summons in civilian court.
Look at how the US treats the International Criminal Court today, a legal body it itself helped create after WWII. Not a huge leap to think they will ignore state courts in the US. Who's going to arrest them?
Because the paychecks come from the same place. If your boss publicly cheated your coworker and then sent the mob to break his kneecaps for protesting, wouldn't that concern you? For purely selfish reasons if nothing else.