Apart from upsetting Poornam Viswanathan and his fans, such as I (or is it 'me'), who love to repeat his dialog "vayasu ayidthu..... vejjitariyaan" - it violates the arguments logic.
Loss of animals is just notion for us. On the other hand it is food for non-vegetarians. I am sure they will be more concerned than us to ensure that food continues to appear on their plate. They will see to it that the relevant animals don't die/deplete/become-extinct. Especially the ones that are loved a lot and eaten more.