Maybe, but don't you think such massive changes to spending in our economy would create some pretty major problems? People act like government spending is burning piles of money or something, but the government spends the money on things like goods and services purchased directly or indirectly from people...and it employs a fair number of people too. You think sudden, massive changes to that is really a wise move?
The same argument you mentioned can also be said about the military budget and every single federal department.
The "Military Industrial" complex isn't burning piles of money either...It spends the money on things like goods and services purchased directly or indirectly from the people. The "Military Industrial" complex employs a fair number of people at the Pentagon, Boeing, Lockheed Martin, Ratheon, and many other defense firms, contractors, suppliers.
The problem here is everyone in both political parties wants to defend their sacred cows. Nothing should be immune from the meat axe cleaver.
I have zero problems with taking every single thing back to where they were under Bill Clinton adjusted for inflation.