"Dietary prissyness." If that wasn't so damned funny I'd give you a Whackya. Well, I'll concede that point about starvation. But me, I live in a spoiled rich country where basic food is not a concern, so I can consider things like the environment. And, it is a privilege I enjoy exercising.
Did you know we still make and export DDT even though it's illegal here? We send it to places where cheap chemicals are more important that a fear of cancer (as the people really don't live long enough to die of cancer). Same principle applies.