In my experience on the internet and posting in various forums and Message Bulletin Boards, MBBs, I have actually typed a response to another person's hatefulness to me and I did use polite words as kindly as possible with which would not have been patronizing the other person. But, I decided that what I had typed should be lost in cyberspace and deleted what I had typed rather than send it, or post it.
While this story, the book or the movie, has a connection to all of us who post here in some way, we also have to realize that the characters in the story are all in the USA and even the Basque and Chilean shepherds might actually be American citizens. Both Aguirre and Del Mar are hispanic names. (OT, sort a here, I knew a guy whose surname was "Fudge" and the non-Anglo origin of the name had no connection with candy.)