Saw dashrashi's LSN site. Since she seems to use profanity, one could say that HYP does not necessarily mean class or refinement.
1. for example: your teachers have biases from living in a racist and oppressive system, and think you're dumb, and therefore do not push you to achieve as they do other students. I am sure there are many many many other ways in which this could play out.
2. Did I say that MJ has it worse than all whites? (Hint: no.) Did I say that MJ doesn't have it better than most whites? (Hint: no again.)
3. People who aren't visible URMs can still face the same kind of discrimination that their visibly-URM counterparts face, e.g. once someone finds out that they are of that group.
This stuff is not that hard. No one is saying that all URMS are worse off than all non-URMs. What i think most proponents of race-based AA are saying is that pretty much all URMs, regardless of SES, face adversity on the basis of their race, and that that should be a consideration. No one is saying anything about poor white people, or, if they are, they're almost certainly saying that poor white folk should get a leg up too: SES diversity is also good for a class. I don't see why you can't have both programs in effect.