I agree about whales and dolphins, they do need a lot of room and I’d guess that generally their life isn’t half as miserable or tough as some other animals. So in that instance I do think a zoo/seaworld is cruel. But there’s loads of land-roaming carnivores who must live on the verge of constant starvation who’d (literally) bite your hand off to be moved to a zoo. Or them penguins in Dynasties who stand on the coldest part of the planet for months without food, warmth, and sunshine. If you ask them would you like 3 meals a day, comparatively good weather and free healthcare or stay in Antarctica and freeze your tits off, it’s a no-brainer for me. Even if it is Trafford.