Some ethnic groups are just fucking lazy.
Not all of them. But enough to put them as a group on the lower tiers as far as success goes.
I don't get the envy thing. If two different ethnic groups started off poor but one group values hard work, perseverance, and discipline while the other group scams the welfare system, buys bling bling, $500 sneakers, and spends their money on hookers and blow....
Well, like I said, I don't get the envy thing. The Good Book says, "You reap what you sow......"
One shouldn't envy others of good fortune when you do stupid things.