I'm surprised Costco isn't getting out, as they enjoy and profit from their goodwill and reputation. I too am interested in their rationale and what they plan to do.
I'm afraid your last two paragraphs are all too true. I'm sure you can get people to give up their Thai prawns, but don't say a discouraging word about the factories that manufacture their precious smartphones!
Fish meal you say, does that mean it's likely the pet food I'm feeding my tropical fish supports slavery too ? I always suspected the lemon tetras envisioned themselves as "masters" of the ocean.
I agree.
Expect Costco to be in the lead.
Maybe not that easy. You can order the veggie tempura without the prawns at Japanese restaurants, but what are we going to do about dim sum?