Immigrants from where? How many of them were black and living in the inner city? Or white and living in rural poverty? Post WWII saw the rise of the middle c

Immigrants from where? How many of them were black and living in the inner city? Or white and living in rural poverty? Post WWII saw the rise of the middle class, it's not really fair to compare it to now and tell poor people "hey, just do that!" Bootstrapping is for websites, it's not a solution to widespread poverty.