Not at all difficult to determine who the government employees are here on FR! LOL!
The problem with eliminating federal employee unions is that most of the federal government is managed by idiots. They make dumb decisions, run our government into the ground, and are not held accountable. These folks then are put in charge of employees and do the dumbest things and would abuse the employees if possible.
Union membership is completely voluntary, and almost all unionized federal employees are not even allowed to negotiate wages/pay or benefits except for the US postal service which is a not a taxpayer funded organization and covered under different laws than the rest of the federal government. The federal unions exist mostly to give employees a voice in working conditions (vacation times, safety issues, etc.). Their dues are not allowed to be used for political purposes either. They do not have anywhere near the power that the NEA has. Congress sets pay and benefits for federal employees.
Eliminating federal unions is not the silver bullet most people here are looking for... The problem is congress - not the federal employee. I personally believe the focus should be on eliminating whole departments like the department of education, and holding management accountable including firing a good number of them for their incompetence. Going after federal unions will not save any money - employees would always be free to donate to lobbyist organizations and influence their employment that way. Eliminate the federal unions, and nothing will happen to improve things for this nation.