Some might even chant, "This is necessary," over and over.
Plant vs animal makes little difference from rational point of view, both feel pain and we have no clue telling which one more, not that it matters in this topic. Health wise plants are better, but ideal is as always some middle ground.
Biohack our guts and we can go on whole lives without harming much, jainists would probably be interested.
I never understood that dumb argument. After so much evolution lead us to being an empathic species, of course we have clue of others pain.
Tear off some leaves of a tree in a public space
Tear off some pets legs in a public space
Observe people around you reaction. They’ll have a clue.