Erm, that second part of the quote is...
or that are produced in place of and using the resources that could have been directed towards producing other plants humans could be eating directly.
While that does speak to the efficiency difference between meat and vegetables, it doesn't really have an impact on the statement that beef production kills fewer animals than agriculture production. Land used to pasture feed cattle isn't killing mice, which is just as claimed. Note, this tends to vary by country with the US using the most destructive form of cattle feeding.
Even then, the comic is still wrong. Would eating meat somehow become more moral if we were to genetically engineer beef into an almost unrecognizable form with zero neurons to kill? That strikes me as even more evil.
Would eating meat somehow become more moral if we were to genetically engineer beef into an almost unrecognizable form with zero neurons to kill?
Of course. Even as a meat-eater, I'd prefer if my meat-eating could somehow be made to not involve killing animals -- if we could grow meat-trees or something.
http://www.smbc-comics.com/index.php?db=comics&id=2393#comic