The steer that is grazing right now and will provide me with a year's worth of quality nutrition will displace a handful of small animals in it's activities, and will be dispatched quickly and humanely. The hectare of soy/grain/legume that provides a lesser-quality of food nutrition for you over the same year will be maintained and harvested at the expense of countless small animals, insects and birds that would otherwise coexist peacefully with a grazing animals. Their death and displacement will not be humane, but in most cases will be slow, painful and even grisly. You moral superiority will be intact, however, as long as you remain ignorant of actual practices in raising and processing of food.
http://sustainabledish.com/meat-is-magnificent/
http://robbwolf.com/2016/08/03/why-is-it-necessary-to-eat-animals/
The overpopulation of humans and decimation of the Earth by agriculture is the result of usurpation of productive land to produce cheap, marginally nutritive plant products, NOT by the pastoralism which was and is self-limiting by it's intrinsic nature. For the sustainable health of the planet, meat and animal products ARE essential to humans and all the living thing which share it with us. We have co-evolved with animals as our primary food source for over a million years; plant-centric agriculture is a mere blip, and a damaging one, against that backdrop.
Try to at least venture into the middle-school realm of rational thought and consideration of where your food comes from and why.