[michaelmrose]

See the repugnant conclusion. I don't have a good answer save that arguments that deal with completely hypothetical people seem to result in completely useless nonsensical results. For example if your argument were correct it would be morally beneficial to breed as many human children as possible to live horrifying, painful, and short lives in order to end their tortured existence as kid burgers because any sort of life is better than none at all.

If we admit the idea that some lives can have negative value for example if they consist solely of suffering it would be OK to breed kid burgers so long as they had a pleasant existence up until slaughter at 7 followed by a quick trip to McKid.

I suspect that my moral philosophy and likely yours is simply insufficient to deal with hypothetical persons and we ought to simply reason about how to treat actual beings that exist.