Judge's response to a foul mouthed racist. Probably quite appropriate, given his apparent disregard for the law or other people.
This was a discussion on a "secret" page on FB and the consensus seemed to be that when we come down to their level, they have won.
Personally I've heard much worse at work and been assaulted but so far I haven't risen/sunk to that point.
Like any item of this genre, we cannot really know the circumstances, not having been present. It could have been an invective filled response which is entirely unacceptable for a person in the Judge's position, or, it could have been a dry remark which I think may have been quite appropriate in the context of this case. We don't know.
Sometimes, you have to fight stupidity with stupidity.