So you ran into some bad eggs who called you nasty names. Seems like you're extrapolating from this and using the very convenient toxic WOW player boogeyman to blame an entire community. As others have said before, dungeons are a collaborative effort. If the other players aren't willing to accommodate you - just leave. You don't have to grit your teeth, moaning about the toxic players under your breath while willfully suffering in the dungeon. Take the penalty (and you have 3 strikes, I find it hard to believe that all 3 attempts will be a failure) and try again. But at the end of the day, understand that single pulling will always be less efficient (and frowned upon) compared to wall to wall pulls. Perhaps you should try running trusts instead if you want to go at your own pace, the NPCs certainly won't mind.