Nothing with regards to justification for what's being done?
Look that's a joke between you and me. I know I'm asking for the impossible because I know the proof you need doesn't exist. So let's leave it at that. I like you and we don't need to go loggerheads for other people's idiocy. BTW, that type of group mentality is appropriately compared to the KKK, or Nazis, or Stalinists, or whatever group you choose that indiscriminately attacks innocent victims, but, again, I digress.
And you're right about the voluntary nature of our participation. Anyone who chooses to subject themselves to this kind of treatment is free to do so, just as the people who form the mob are free to do that (well, free, free, I'm not so sure - history shows that sooner or later it always ends bad for the circle jerks).
Just as those who wish to avoid this kind of dysfunctional behavior can opt out.
Cheers. It was nice knowing you.