You could fire every USG worker and the effect would be minimal. There is very little discretionary spending compared to the overall budget, the majority of federal spending is entitlements and interest on the debt. All must spends, all programs with loud self-interested (with perfectly legitimate reasons to be so!) constituencies.
You know, like a bare bones computer, what would a bare bones government look like? Start with 1. The Military, we need that 2. The Mint, we need that 3. . . .
If it was really bare bones, how many numbers would there be. I'm talkin' real bare bones. Would be interesting is someone was really serious about it.
Go Trump! Slash and Burn the Swamp!