Define "soul," because animals have nervous systems, feelings, sensations, methods of communication, and every single other aspect that we retain making us "alive" and "human," just to a lesser extent in most cases.
Do you know what evolution is? It's a nice little theory saying we come from primates. Does this mean we were machines until we evolved into homo sapiens? But wait...what about homo erectus? Was he a machine too? And homo habilis? Do you know we share 98% of our DNA with chimpanzees? I suppose that means they're 98% non-machine?
I find it hard to love humanity after hearing people that truly believe things like "animals are the equivilant to machines."