I love this actually because people dont realize how insidious this is.
If humans spend a large quantity of time talking to AI, and they spend a large quantity of time bullying or being abusive to it, the interactions are "human enough" meaning that, regardless of if the AI has a subjective experiance, the human does, and abusive behavior will become the norm. In a vacuum that person will become problematic for society, the same way that those who hurt animals in private do. An entire generation of psychos could emerge without the same societal pressure to not be a jerk.