We are total animal rights people. I can honestly say that my husband really does break for butterflies. We have stopped not once, not twice but three times to help a turtle across the road (and one of those times was a Disney World).
We love Animal Kingdom. Because there is no where else we can see these beautiful creatures without spending a fortune. There's no where else we can take our son (now grown) and our grandson (son of the former) to understand the plight of these animals. There's no where that local animals (ducks, ibises, cranes, osprey, and even eagles) can all be seen in one single day all along with "exotic" animals.
We don't go to Animal Kingdom to gawk at silly animals and make fun of them. We don't go there to see them behind bars. We go to see them in their natural habitat and the LEARN from them. They can't speak for themselves but they teach us so many things every single time we see them.
How else would I know how the anteater mates? How would I know about the amazing birds if not for Flights of Wonder (where the birds do ONLY their natural things)? How would I know how much Disney cares for the wildlife around the resort if not for seeing a turtle (no, not the one we helped cross the road) getting some surgery to repair his shell? Or the bats having check ups to make sure they were OK?
Animal Kingdom does so much more than just display animals. They teach. If you want to learn. And, sorry, maybe your friend is just turning a deaf ear like so many others that go to other zoos and rush right through it wanting to see more thrills. Animals aren't that thrilling and for years that's been Animal Kingdom's downfall. Disney gave us a few thrills but for the most park, Animal Kingdom is one of the best places to see animals in their natural habitats. It's too bad your friend won't even take a chance.