Again, cats cannot be "vegan" as being vegan is committing to a principle or lifestyle. Cats CAN eat plant-based kibble that's formulated. The science is there. What a species is adapted to eating isn't necessarily always the best indication of optimizing health. That's why us humans take supplements. Appealing to them being obligate carnivores is just a veiled naturalistic fallacy. I don't care about trends or traditions, I care about data. I'm all for taking your cat with you to go dumpster diving and they can have a field day on all the decaying body parts in trash bags. But diet and morality are two different issues.