To live together in social communities, people create and maintain expectations about what is normal and what is not. Sometimes things can fall outside the range of normal and people are OK with it. You might have a neighbor who likes to wear Revolutionary War-era costumes on their evening walks around the neighborhood. Their behavior seems weird to you, but you consider it an instance of everyone’s freedom to express themselves.
But other times something seems not only abnormal but also unacceptable. In this case, people take active steps to squelch what feels unfair, inappropriate, bad or deviant. Things that people think are morally abnormal – aberrant behavior, transgressions, violations of their most sacred values – are viewed as highly threatening and necessary to shut down, with force if necessary. Most people would find a neighbor who purposefully starves and tortures their dogs morally repugnant. That neighbor would need to be stopped and would deserve to be punished.
