I think you missed my point. All of the trying in the world isn't going to replace the luck that's required for most people to succeed-- be it being born white and in a middle-class or better household in a middle-class-or-better town, not being sidled with familial or health obligations, or even being born with a cognitive profile that has workplace utility. Being comfortable enough to live with a parent and be lazy is already a privilege that a giant chunk of the US population doesn't have. Nobody is arguing that people born into opportune circumstances can succeed without doing anything. They just have the opportunity to make that effort turn into significant results when many others don't.