Some of that is brains and talent -- but nepotism and cronyism also helps them dominate certain fields.
Actually, all minorities (gays included) practice nepotism and cronyism. But not whites.
Whites are especially eager to find and hire a capable non-white. It makes them feel morally virtuous. "I hired the best candidate. He just happened to be black!"
I don't think any other ethnic group feels as morally virtuous when hiring someone outside their group.
So you don’t consider Jews white rattlesnake?