We probably spend more on the military than necessary, but that cost is the least of our problems.
We get services from government, just as slaves got services from slaveowners: shelter, housing, clothing, medical care, etc.
The American people had a higher literacy rate before compulsory public education than they do now.
I understand that you love your slavery. A majority of slaves have always been happy to be slaves. When former slaves were surveyed in the 1930s, about one third preferred slavery to freedom, and another third didn't see much difference.