The selection of who does and who doesn't belong to a "diverse" category is based on how frequent these people happen to be in the population (for example, Asians men are not "diverse", because there's plenty of them in tech - but Asian women are, because they're far less frequent). So, by definition, the "diverse" candidates will always be a minority. It can't be fixed. Even if we somehow reach perfect parity according to existing criteria (no one category is less frequent than the other, so no category can be chosen as the new "diverse" one), new dimensions of oppression can always be invented (e.g. tall/short, rich parents/poor parents etc.) or just created as intersections of existing ones. The game will never end.