This is always hit and miss, last night I used the DF to do Easy mode Garuda. It took me 3 different groups before defeating her and numerous tries with each group. Nobody was toxic, even though we were wiping most the time people were willing to discuss what we needed to do and eventually ended up downing her.

I'd say if everyone is open to playing and doing things differently maybe a better playing environment will open up, If someone wants to take the lead and tell people what to do let them, if it doesn't work out let another player try his or her method. Everyone needs to be open minded though. Of course there seems there will always be the really big jerks.