Simplest answer is: if you are a vegan, do not own a cat. They are obligate carnivores. There is no healthy and humane way around the fact they need to process meat to be healthy. Don’t own a cat if you are vegan and don’t want to feed your pet other animals. If you don’t want to rehome your cat, you will need to live with the fact that you will need to sacrifice another living mammal in order to feed your pet.
Owning a pet while vegan is already kind of hypocritical…
I’m here but I’m a Canuck so I can’t do diddly squat, sorry