You're reasoning isn't sound here. Same logic can be applied to other things: breeding dogs to dog fight, breeding humans for organ harvest, etc. And presumably

You're reasoning isn't sound here. Same logic can be applied to other things: breeding dogs to dog fight, breeding humans for organ harvest, etc. And presumably you wouldn't think those justify things. I would also ask you to consider if you'd like to be born as a creature that will be mutilated, abused and ultimately painfully killed and if you would consider that preferable to never existing.