Troll harder, you haven't mastered it yet.
Vegetables don't release 200 - 500 litres of methane a day. And why feed 20 calories of grains to a chicken to get 1 calorie of meat, when you can just eat the grain? Then you have 20 times more land to produce food for people, and we can stop clearcutting a major carbon sink like the rainforest and keep that carbon in place too.
Reality sucks, don't it?