There are scattered events of slavery of white people purely based on race however nothing in comparison to what the enslavement of black people did. No race has been enslaved as methodically as black people and off hand I can't think of many being enslaved and substantially disenfranchised for longer. One of the reasons that black slavery is a more essential issue is that our entire international trade system was developed at the same time as black people and the way the world currently works means that prejudice is still highly prevalent in countries that ran those trade operations, who rather coincidentally have went on to be the only superpowers of the world, it is the same reason that slavery by the Gauls would be less of an issue than slavery by the Romans, the world was controlled by Rome and subsequently it had farther reaching effects and isolated uncoordinated slavery. One theory is that rich people utilised and impressed upon poor white people that they are superior to the black people to keep the white and black people who were poor and had much in common from uniting and attacking this power structure however that is a more complex argument somewhat hinged on accepting the first one. A more basic answer here too is that I would like to imagine we are a better society than we were centuries ago. You're treating this like an abstract problem like peopl, there are literally mountains of data and studies out there that show being the exact same person except for your skin colour will lead to discrimination in a multitude of every day activities, university applications being far superior to white people, breaking a minor law being far more likely to lead to a warning or slap on the wrist for a white person, a white couple being served first in a restaurant, gas stations being more helpful to white people, companies being more likely to sell loans that default to black people, liquor stores being far more likely to check for id with white people. There are researchers in the field, highly trained sociologists who spend far more time thinking about way of demonstrating this than you or me; a couple of google books if you're at all interested http://books.google.co.uk/books?id=...age&dq=race+discrimination,+percentage&pgis=1 http://books.google.co.uk/books?id=AwjWn5cvB-4C&pg=PA91&dq=race+discrimination,+percentage http://books.google.co.uk/books?id=...&dq=race+discrimination,+percentage#PPA103,M1 Positive discrimination schemes aim to fix those very socioeconomic divides to a level where they will hopefully be obsolete. The NBPA's ultimate goal is to destory itself at some point, you are right an association like that cannot exist if society is equal and reasonably unprejudice however we are very far from that therefore it and other schemes of positive discrimination justify themselves Additionally yes it is racist to assume all white people are racist, just because white people treat other white people differently than they treat black people isn't racism its discrimination, there is no forethought into doing things that way but they were born, educated, trained and lived in a society that is prejudice its extremely hard to not be prejudice yourself without being aware that these systems that exist are themselves prejudice.