trying to make an old cat go raw

[Kilico]

Cats are true carnivores and cannot thrive on a vegan diet.

Yes, in fact they can suffer serious illness (with some dying or going blind) unless fed meat. I always tell vegans who are uncomfortable with the diet necessary to maintain the health of an obligate carnivore such as a cat that they should get a bunny instead. (I say this as a vegan myself, one with several cats).