Dear Smiling Dave:
The USA cannot sustain our lifestyle if we only cook hamburgers for each other, sue each other, sell each other life insurance, clean each others houses, work for the government, and not create any of the things that we consume.
Tax payer supported jobs such as police, teachers, military, finance, social services, welfare, environmental and other bureaucratic jobs generally do not produce any of the food, shelter, and clothing required to sustain life or create any wealth for the nation.
The citizens who work to produce the necessities of life have almost always been taxed for a portion of the wealth that they generate to pay the government employee salaries of these government jobs are that are needed to support and protect the citizens that do produce the things that society needs to survive, but a lot of these government jobs could be eliminated. The communist form of government where everybody works for the government because the government owns everything does produce the food, shelter, and clothing required to sustain life.
Most of the individuals in communist countries want to work at something other than producing the basic food, shelter, clothing and other products required to sustain life. They usually become a nation of non-producers wanting the disgruntled producers to produce more and more so that privileged individuals of the elite can keep themselves busy as musicians, poets, social workers, philosophers, historians, politicians, bureaucrats, administrators, etc.
The elite will then let, require, and/or force those that the elite have deemed lower class to work hard and produce the food, shelter, and clothing required to sustain the life of the nation including the elite class of the government employees.