I don't think we can assume meat based diet is better than plant based diet anymore. And without this assumption the "own good vs. common good" argument doesn'

I don't think we can assume meat based diet is better than plant based diet anymore. And without this assumption the "own good vs. common good" argument doesn't hold. Because in reality, "own good" and "common good" align at a lower consumption of meat. (Ignoring taste, obviously. Meat is delicious!)