I feel that everyone has to go by their own conscience about what they can or can't tolerate.
I have no argument with vegans, vegetarians, or ovo-lactos, as long as they don't try to convert me or tell me that I'm a horrible murderer for eating animals.
For whatever reasons someone is a vegetarian/vegan, that's their choice and I respect it. I expect the same respect back as an omnivore.
I eat a lot of chicken, more so than any other meat, which is why I plan to start raising chickens for eggs and meat next year.
I'd also like to raise a beef steer for processing, but that's going to be a few more years down the road, and I can get locally raised pork and goat meat from neighbors who raise them.
Doing all of that insures I'll know where my meat is coming from, and how it was treated and fed before it became food. I think that's as responsible as I can get and still maintain my meat eating habits.