“Making broad generalizations such as yours, doesn’t accurately describe reality in a lot of the circumstances.”
Every job you list can and should be done in the private sector.
The private sector is where the overwhelming majority of all work gets done.
It’s the way a free country operates.
Your assumption that these jobs MUST reside in the federal government is the real problem. You do not understand, and won’t until you are relieved from your federal job and have to actually rub elbows with the people that pay for it all.
Psst....I have worked in the 'private sector' as you call it.
I got hired into the Federal system BECAUSE of that experience and expertise gained there.
I earned my way here.
Regarding your comment on “contracting out”, sure, they do that too. The US government pays more for contract work than it does employees.