I too used to think and act along those lines. Truthfully I feel a little bad for him because if he doesn’t change he’s probably going to end up being completely alone.
Hopefully he doesn’t act this way in person.
He probably tones it down when interacting with people face to face because if he went full blown then no one would want to be around him. Even other pompous and cynical assholes would get tired of his shit quickly.