[strictnein]

The cattle on farms wouldn't be off roaming the countryside if we didn't eat them. They just simply wouldn't exist at all.

[bijection]

Is unpleasant existence always better than nonexistence?

Put another way, would you make the same argument if the creatures in question were people?

[baddox]

Might it be moral to destroy all life on Earth, thus ending all pain?

[strictnein]

This is always what I assumed a genie would do if you wished for world peace.

[zpghjll]

Yeah, that's the plan. Animals aren't ours, and we should not interfere with their natural selection.