Because it’s not needless. While I don’t eat meat, it will take centuries to eliminate it’s consumption on this planet, including for pets because of how calorie rich it is and culture. But it’s really not needless because cats need it. To ya know, live.
I’m not going to go off the cliff with you about veganism and ethics and everything else. It’s a joke of a debate because veganism is incompatible with anything but veganism. No thanks, leave me alone.