You probably are not going to believe me but my parents are jewish in a religious way. I am an athiest but still some people will say I am a jew. If I saw a guy wearing a swastika I would probably call the cops on him and he could be fired or/and be put in prison. Which is a better lesson then hitting someone which will just mean he will go armed or with a group which will make him more dangerous. Think about it lets say you saw a guy you know wearing nazi stuff if you hit him you will just be put in prison. But if you call the cops on him or tell his parents not only will it hurt him more but he has a bigger chance to change. Imagine if this people filmed him then there is a big chance one of the people in his job will see it and tell his boss who will fire him.