You can be the first input in such situation then, but I prefer that humans can show they’re capable of better discourse than “eat or be eaten”. That’s kinda limited and trite in light of our more developed cognitive abilities, honestly. Also, the universe is literally limitless, so we don’t need to think in terms of zero sum games or resource limitations 🤷‍♀️

Regarding inputs: Eating fruits and seeds doesn’t kill anything, in fact plants evolved tasty fruits so that they’d be eaten and propagate. Vegetables and fungi can be eaten without killing the organism. You can consume eggs and milk without abusing or killing the animal