Depends what your view of the American Dream is.
Is it becoming a millionaire? Sure, I knew a few here that came from immigrant parents and yes, they did work hard enough when things weren't working in their favor. I also knew plenty that being on the higher end of the middle class is what they wanted to achieve...nothing extravagant but having enough purchasing power to nail down that luxury car or take their family on an annual Disneyland vacation. Then their are those even further down the line that are straight immigrants coming from latin america or africa that are from straight up poverty and THOSE are the ones you see working two jobs to make a better living than what they had and get their children through school.
So yeah, you are completely wrong here. I see most members on Tuz from the US doing well and well on their way up the economic scale.
I'm enjoying my American Dream, I can tell you that. And yes, I do work hard.