The concept of "rich minority" is fundamentally unsound. We know wealth distribution is uneven and we should focus our efforts on helping people who need it. If your model is built on things like "a few minorities are rich" or "white families have the exact same problems as black and hispanic families" you're missing a lot of important details, like how the needs of racial and social groups groups are different, if only due to the historical oppressions they faced and not due to any current ones. You simply can't ignore those things just because you know a few counter-examples. We have to look at the breadth of humanity and not just a few hand-picked negative or positive cases. There are problems unique to the average white family too! True inclusion means making sure everyone has a fair and equal shot, and if that's done properly it doesn't mean white families are going to be left out.