Considering your whining about force lightning (lol.) I can't take anything yuo say respectively.
2ndly getting smashed for 4k-5k is over the top but its fine because those classes are melee and need to get close. Sorcs are not they do "good" dmg at RANGE, if your in thier face and cant win, just quit pvp'ing.
For your 90% argument, I've never been in a Warzone with the other team consisting of 90% one class, could happen but I play on a heavy populated server, might be different for others.
http://www.youtube.com/watch?v=ZA7YuWuIF-k
Video made for sorc whiners.