It should be fairly obvious that I adore Zootopia even though I have only seen it once (thus far tonight will be my second viewing)
Being the movie nerd I am, I found the deleted scenes and I actually liked the tame collar plot in Zootopia far better than "evolving" beyond eating prey. An example of the storyboard for the collar sequence for the Taming Party is here
https://www.youtube.com/watch?v=SkJGLCleFmI.
I think it would have made the movie darker and more interesting. What would predators eat otherwise? Tofu?
Many animals cannot process without meat and although some are omnivores (foxes and wolves) they still need meat to survive. It could also explain why predators are more stand-offish towards prey species being made to wear collars that literally shock them each time they get too strong of physical emotions. I don't buy the whole harking back to genocide themes. In order to have a world where prey and predators co-exist there would have to be some serious physical and mental reassignment. Predators might be able to evolve beyond their needs for meat in time, but not right away. In order for these results to occur the severe aversion therapy would need to occur before biology began to evolve. I get it's just a movie and a universe won't answer everything, but I find it makes it more interesting for the predators to have the collars and it explains a lot of bitterness and anger many of them carry.
It would have never made it into the movie being dark as it is just like I would have preferred elements of TLK to remain in such as Scar being consumed in flames at the final battle between him and Simba, Scar choosing Nala as queen, and even Zira's suicide, but most of the more fascinating tidbits are cut from these movies for fears of being dark. I'm still shocked The Hunchback of Notre Dame made it off the board room floor because it's darker than any of these ideas IMO.
Dog Mom to Misty, Sango, Tami, Abby, and Kawaii.
Three Angel Babies at the Rainbow Bridge: Mija, London, and Olga