Beep Boop Bop, it is disrespectful to the robot to call it a zombie. Robots however are told what to do and they do it, AI label or not. And if you look across the horizon on a North American Afternoon, and even though there is the smell of blood in the streets, the Robot Bulls chug on.
What drives Robot Bulls? Fear of ruining Christmas. The mountain is only so nice before the valley looks nicer. That's when the robots will die because up in the mountain are real life hungry MacD bears and they'll eat anything.