It just took some guns to conquer South America. Flying drones with AI targeting will be too much for regular people. The rich will have access to this service.
Give unto Caesar that which is his, and let God handle the rest. The base case for the inductive proof is alarming, and I can’t see it ending well.
A bit of a tangent, but the more complete reason depends on what civilization (Aztecs/Incas), the common factor is an extreme loss of life due to old world disease.
Additionally, for the projectile velocity at the time the gambeson-like garment the Aztecs had available was surprisingly effective.