I like meat too and won’t give it up unless decent lab grown meat comes around but this comment is the most dissembling nonsense I have heard in a while.
It is no more nonsense that the OP’s argument. If you do an analysis on animals killed per calorie, grains kill many more animals than say grass fed cattle. I think many people are unaware how many rodents are killed every year growing and harvesting grains.
I don’t think this is a very good reason to eat or not eat meat.
This PDF is a flyer on pest control, presumably targeted at growers of grain. Nowhere does it contain anything resembling the "analysis on animals killed per calorie" you referred to.
I don’t think this is a very good reason to eat or not eat meat.