> By not identifying the distribution of various discriminated-against groups, they are rendered invisible, or nonexistant when it comes to policy making. THis is fine if you are in the majority, because that is the de facto policy making consideration, but not so good if you are not represented.

It's not a majority/minority concern. The concern is whether people are counting you in order to help you or hurt you. Jews aren't so vigorously opposed to Jew-counting because they're a majority.