You have no point at all. If you harass people publicly, and it's reported or seen by law enforcement, you're going to be warned to stop, and if you don't, you'll probably wind up arrested, at least if you live in most first world countries I've been to. Because (guess what), civilized society can exist only because [spoiler]your "personal rights" claim only protects your person, not your willingness to harm other people.[/spoiler] Daily reminder that libertarianism is literally a mental illness.

A single incidence of insulting someone is not harassment.

And he's down for the count. This is why hanging out in an echo chamber isn't good - it leads to the complete inability to make counterpoints.