Locate at least one real-world example of someone using dehumanization to make aggression easier. In other words, describe a case in which one person dehumanizes another person or group of people in

Locate at least one real-world example of someone using dehumanization to make aggression easier.  In other words, describe a case in which one person dehumanizes another person or group of people in the process of intending to harm them.  This can be an example that you experienced personally, something that you observed happening between other people, or something that you find in a book, article, or online post.  (Note: Online comments sections often contain examples of dehumanization of out-groups.)  Be sure that the example you find involves explicit dehumanization -- it must use words or images to imply that a person or group is less than fully human, like an animal, or not fully evolved.