Humanity is individuals as male or female. It is families as races and a species divided into cultures, factions and nations.
Most individuals are insignificant. The nameless many instead identify as male or female by family, race, culture, faction or nation.
I write fiction. I populate imaginary worlds with imaginary people. Like in reality, most of these people are insignificant. They are nameless accordingly, instead recognized by their sex, race, culture, faction and nationality. They have no other identity.
Unlike everyone else, main characters are significant as individuals. Their sex, family, race and nation are incidental. Their personality is more important than their culture and decides their role in a faction.
I realized fiction is true to life in the simplest of terms. The heroes and villains are important. No one else really is, except as nonentities to save or slaughter.