I was disappointed. It was merely clever. The theme was unoriginal.
Life is something you do, something done to you. It’s an old saw. It’s the main theme of Greek myths. Vonnegut didn’t add much.
He re-surfaced it in an amusing way. The aliens, Tralfamadorians, are the Fates. Maybe politicians are the gods.
Both Homer and Vonnegut take war as the stage for their look at fate. Is there a difference? We don’t accept the inevitability of war (do we?). Vonnegut was sarcastic, Homer sincere.
But sarcasm is never deep.