Racial oppression and prejudice, fitting into the cultural normalities and societal standards, finding a job, possibly learning the language which they are not fluent in, etc.
Not having money brought the economy down
This is false. Workers in American mines, mills and factories were poorly paid, and their jobs were extremely unsafe. These horrible conditions (among other things) eventually led to the formation of unions.
ST + TU = SU, because 36 + 64 = 100 (ST)2 + (TU)2 = (SU)2, because 102 + 62 = 82 ST + TU = SU, because 102 + 62 = 82 (ST)2 + (TU)2 = (SU)2, because 36 + 64 = 100