You know what? It's funnier to make fun of rich white people than poor white people. Poor white people- you're always worried that they'll have shitty health insurance and all their teeth will fall out and then you'll feel really bad for making fun of them. Old white people? they could break their hips and then you'd feel bad. But rich 20-30 something white people? well, woopty do! so you made fun of them on the internet. They can just go and cry in their $10 mojitos or whatever.
So, here's an important lesson of comedy- the more expensive the drinks that a group can cry in are, the more funny they are to make fun of.