The problem isn't the Flipper-free tuna. There's much to be said for a eucharistic regard to the natural order as a precious gift for which we should be grateful and exercise good stewardship. The problem arises when stewardship's ripped from the eucharistic context, becoming no longer about gratitude that refers us to a Giver, but about asset management and self-referential sentimentality.
Not about sharing from the heart but about control?