It turns out raising animals for meat is generally fine either way.
If existence is worthwhile, then raising cattle means more cattle get to exist. Sure, it's not for as long as if you were raising them out of pure selflessness, but the other real option is not to raise them at all. Perfect, enemy, good, etc.
If existence is not worthwhile, then being slaughtered is a mercy. When you raise cattle that shouldn't have been raised, you're also scheduled to fix it.
P.S. I need a word for the logical fork strategy. Can'tfuckupism.