I became a vegan two years ago, mainly motivated by emotional distress at the thought of the pain and suffering that animals go through to be killed/farmed. Now I justify this decision to others for health/social reasons, because I don't know how to justify it morally. I instinctively feel that to eat an egg, whether or not the hen was free-range, or even if I just found it outside, would be inherently wrong, but I can't quite articulate why logically. I suppose if pressed I'd say that all sentient beings possess rights, or at the right not to be treated as property, and farming violates this right. Does this stand up to scrutiny?
I think it does. I'm convinced by your argument and feel guilty that I can't seem to make the step into being at least a vegetarian. I don't see any justification for killing and causing suffering to animals when it is relatively easy to find other more healthy sources of nutrition.