A lot to unpack here.

> The common man isn't expected to understand tariffs, international banking, military theory, computer engineering, social justice issues, and food scarcity.

What better use is there of the common man's time than understanding societal issues like justice and scarcity? Are you describing how the world is or claiming how it should be? If you do not understand justice, scarcity, etc. how can you claim to elect someone who reflects your views--ignoring that a lot of politics is lesser evil voting?

An uneducated populace voting is a worst-case scenario for a representative democracy.