And yeah, you definitely have the wrong understanding of what affirmative action is and why it exists. Firstly, it doesn't just apply to "Black and brown kids", it applies to all minorities, including Asian people and women. Secondly, obviously everyone has individual challenges, no one is denying that; but someone's cohort does, in fact, impart systemic obstacles and lead to a harder time, on average, attaining opportunities that other groups, on average, have an easier time finding. It doesn't mean all Black people have no opportunities, or all white people have plenty; it means that on average, certain groups (including Asians and white women) have systemic disadvantages that are unfair.
No one thinks, for instance, that Morgan Freeman or Samuel L. Jackson are struggling for opportunity; and no one thinks, for instance, that there aren't homeless white people with abusive families struggling just to survive. But it's not about the individual situations. It's all about systemic opportunities and averages.