How can speciesism - even our own SPECIES' speciesism - be abolished if we're still involved in feeding carnivores by killing herbivores?

You mean, killing cows to feed cats, of course. I don't have the answer to that. Except, as I mentioned, the hope of growing artificial meat to feed them. Our whole society, including our tradition of having domesticated companion animals, is so unnatural. What would you have us do about cats? Cats living in the wild, starving and breeding endlessly, suffer incredibly.

@Pablo Fernandez-Beri I really liked your post, http://veganadverb.blogspot.com/2011/01/why-we-use-animals.html

It answered some questions I've had on how to explain to someone that using animals is not a need. It's true using animals is an addiction and to some the thought of stopping creates fear. I've been thinking of how to respond to someone who feels this way, and your post just answered that for me. The last paragraph gives simple, logical, and respectful responses we can all use to spread the word. This is a great help! Thanks for sharing!