Not the user above, but also vegan with similar views (except about large corporations, I love them). If you assume that farm labor must be exploited to harvest

Not the user above, but also vegan with similar views (except about large corporations, I love them). If you assume that farm labor must be exploited to harvest crops, and that animals are an inefficient way of spending the crops (calories in are greater than calories out), then you reduce the total amount of crops used to feed someone by taking the animal out of the equation. It's all about chasing the lesser evil.