One of the most persecuted ethnic groups in history has been the Jews…Ghettos,Pogroms,Genocide,selective punatitve taxation and even today Neo Nazi nut cases vandalise their graveyards,I dont know if the thing about social exclusion in the U.S.(country clubs etc.)is still true but it appears to me that a good percentage of them are very successful educationally,financially and in showbiz.
In the U.K.Indian asians do above average educationally and in business though until quite recently they were discriminated against(though to be fair its not unusual for them to be very racist themselves,trying getting a job with an Indian firm or marry into an Indian family if your W.Indian,African or White)
Likewise educationally and in business the same holds true for the Hong Kong ethnic Chinese.
So it wont wash when someone who loafed their way through school,left with little or no qualifications then go on to a work history of unpunctuality , unreliability and a lack of self discipline try to pass the old chestnut that their poor economic status is due mostly to their ancestors being slaves .
If the Jews etc.and the rest can do it then so can you.
Before Im accused of partiality Im not Jewish or of any other ethnic group other then mostly Anglo Saxon.