is true, but our best guess is that the extent to one can experience pain is heavily correlated with how far up the phylogenetic tree the species is. So chances are they experience far less pain.

my satirical take was just comparing the morality of the issue. There are a lot of practical questions of which environmental impact is one. my guess would be that the vegans win out by a lot here, purely due to the higher efficiency in calories from an input/output perspective, but not sure