Basically, unlike what some people in this thread would expect, in this particular instance it would be safely said that I was carrying them.
Let me guess, because you were bearbowing safely at 1200 range?
Unless you would actually provide anything about player, class and build compositions, this anecdote means little. CoF is an incredibly popular dungeon and you can find anything from complete beginners to absolute experts. As you are likely not the type to set extra-harsh requirements on the lfg-tool, I would guess you had a bunch of beginners. Maybe they were even average, but because you stayed away from the group, didn't give them any useful boons or traits or generally were dealing less damage than you could have, the champ didn't do down in time.
I'm speculating of course, based on my own experiences with certain rangers in dungeons. But like I said, such anecdotes mean little, what I feel is important however is that when forming a group, players are aware of each others expectations.
This brings me to my actual point:
Enjoying the game is entirely subjective. As I've mentioned above, the important part is to be aware of each others expectations when forming groups. If you don't like meta-builds and berserker-gear, by all means, but then don't join such groups. Announce and form your groups accordingly.
I have no idea why you had that "raging berserker guy" in group, but obviously you and him expected differently. How did it happen? Did he not read your lfg-message or did you not read his? Did you both join a group that provided no specific information about how they want to play the dungeon? Maybe you should start picking your groups more carefully so that not only you, but also the other players can enjoy the game.