I assume you mean dungeons, and saying "Aside from core differences that completely change how it works, including an inability to queue for it, it's the same" is a joke. My sandwich and my car are the same thing aside from the material they are made out of and their sizes.
Or I can just play a game that makes content for me and doesn't force me to play with people like you.Based on your comment about berating, it leads me to believe that the primary impedance is your fear of being attacked. Yes, that's a very possible scenario and it's unfortunate when it happens, but there's measure you can take to avoid it. First I would suggest joining a community or guild and let them know beforehand that you underperform and I can almost guarantee that they'll lend you a hand rather than spit on you. I've helped numerous people improve their performance, going from grey parses to purple parses.