In common usage we don’t think lawful violence as violence. We don’t say that it’s violent for police to arrest bank robbers. Therefore prohibitions on violence

In common usage we don’t think lawful violence as violence. We don’t say that it’s violent for police to arrest bank robbers. Therefore prohibitions on violence are commonly understood to apply only to unlawful violence. No one is confused by this! The distinction only surfaces if someone insists on describing lawful violence as violence, as in the parent comment.