This server is a little like RL society, if you're not a white male age 20-30, you're gonna have a rough time swallowing some of the crap spewed out from people. You just have to take it with a grain of salt and remember they're behind a computer screen saying this shit, not out in the open where they would be at risk of getting their face caved in and they know it. That's why trolls do what they do, they like to pull strings and by reacting this way it only makes them want to come at you harder.
Easiest thing is to just picture everyone person you talk to as some little pre-teen pimply faced brat or a fat virgin neckbeard with cheeto dust on their fingers and shirt. Being this is WoW theres a 99% chance they fall into that category anyways.