Step #1: Grow some thicker skin and maybe spend 10 minutes learning how to play instead of 10 minutes whining on forums
Step #2: Research your class and fight mechanics before join a raid with 24 other people. Elitists (aka the people carrying you through the raid) aren't there to hold your hand and most of these "elitists" wouldn't say anything if people:
a) didn't do stupid shit
b) pulled their weight
c) spend 20 minutes researching a fight / class and / or a wing of LFR (or whatever) before queuing and causing the raid to wipe for 4 hours
Step #3: See step #1
Casual is not an excuse for being stupid. I raid 2 nights, 3 hours each night for a total of 6 hours a week working my way through heroic content.
All of this political correctness is whats wrong with LFR. Take a hint, if someone says you're bad ... you're probably bad; and instead of whining and crying and having a tantrum on the forums crying foul, you should go learn how to play and how fights work.
Oh, and before the "I have a real life and I cant dedicate my time like you do to world of warcraft" excuse comes into play, I call bullshit; if you can spend 4 hours in a single, 4 wing boss of lfr wiping repeatedly - you can spend 20 minutes doing some research, watching some videos, and hitting a dummy to work out your rotation / priority so you don't look like a tool in a raid.
Follow those steps and I guarantee you'll see less and less people complaining about anything during a raid - you might even see some of those social aspects of the game come back when things go smoothly because people wont be complaining.