Taking those line items at face value is just a bunch of Dunning-Kruger. The government isn't like a tech company with a single product that can be understood well by one person. It produces many thousands of different specialized products and services.
When the National Partnership for Reinventing Government successfully cut spending in the 90s, they took 5 years to carefully evaluate what the government was doing and why, followed legal processes to propose improvements, and saved a lot of money simply by finding ways to streamline processes and procedures.
DOGE has taken a completely different approach, slashing and burning without understanding the consequences of their actions (or potentially, not caring), and intentionally doing it without involving other stakeholders. Many of the things they've cut that they thought were stupid were immediately found to be important and reversed. Some of the other things they’ve cut we’ll be finding were important for decades to come.
DOGE is just Chesterton’s Fence as a service.