This sort of stuff is why I haven't been having much fun gaming lately, the other gamers and I aren't friends, we are just "gaming acquaintances". In the past, like the first 10-20 years of my gaming life, I gamed with a group where at least half of them were actual friends. (You know the ones, the people you do things other than game with and can have fun.) That kept all the drama to a minimum, because we were all buds, amigos, etc..
But, even without that, people should have a certain level of respect and courtesy for each other. I do not believe in: "earn respect," I believe in: "earn dis-respect" - I will respect and trust you until you prove otherwise. Everyone should start out with a base level of respect for everyone else, one higher than the normal today, I believe.