I’ve long had a theory that cats have evolved to be just cute enough that we don’t murder them. Cats are evil, so it’s understandable that humans would want to kill them, and I think we probably did early on, but some of them were so cute that we didn’t. Those surviving cute cats reproduced and made more cute cats, but they also became more evil. Over generations, we have created beings that are supremely evil, but they’re just so gosh darned cute that we let them get away with it.