I could see a path between factory farming and total veganism. Maybe the "Buffalo Common" concept, where meat is a luxury item for special occasions, and comes from culling a free ranging herd that lives out their lives away from humans. No hormone shots, antibiotics, branding, feedlot fattening, none of that. Maintain the original ecosystem of the Great Plains in a healthy state, on land that doesn't support cropping anyway unless you drain the aquifer to irrigate intensely.
My digestive system, and overall health, seems to prefer a vegetarian diet, but I eat fish once a week. It's easier to digest than land animals, and I can buy wild caught, and it's anti-inflammatory in its fatty acid ratios. And, as GB Shaw put it (roughly), I like to leave the animals alone.