And it's fiction, not a documentary. Fictional entertainment is all about assembling a pack of archetypes/stereotypes and putting them through their paces.

I once had a bizarre argument with a Hollywood special effects engineer about this. She thought it was dishonest and all-around despicable that movies took the shortcut of relying on well-known archetypes instead of spending hours or even days developing each character's unique and "special" life story...before even beginning the story to be told.

Silly is a polite word for that attitude. Would you sit through hours of character development back story before you're permitted to experience the story you came to see? Of course not. You jumpstart your understanding of the story with a basic understanding of the characters and their intrinisic attitudes and world views.

You can't tell stories without archetypes and their misidentified cousins the stereotypes. You're stretching the point to ridiculous extremes to gin up an argument.