> You can simultaneously recognize that the system is biased against certain races while also avoiding infighting based upon race.
maybe you and i can, but in practice, that doesn't really happen. one of the biggest problems with our social justice movement is the complete lack of unity. many times when i see privilege brought up, it's used to invalidate opinions and justify hate towards those with more privilege ("i'm oppressed so my hate is irrelevant compared to the oppression inflicted on me"), not as a simple reminder of people's relative advantages or disadvantages. the crux of the problem is that the issues of a minority community have a much greater chance of being solved with support outside of that specific community.
but groups that advocate for social justice for minority groups too often create a dialogue of hate and "oppressor / oppressed", and outright exclude those who don't belong to the oppressed community for which they are advocating. in this way these communities become insular echo chambers, since rather than taking outside voices with a grain of salt, outside voices are simply not tolerated. the dialogue becomes more and more partisan / hateful and the rift between relatively advantaged and relatively disadvantaged groups grows wider.