Countries with preferential policies have varied enormously in cultural, political, economic and other ways. The groups receiving preferences have likewise varied greatly, from locally or nationally dominant groups in some countries to the poorest and most abject groups in others. The same patterns are however evident. Fraudulent claims of belonging to the preferred group have been widespread and have taken many forms.
Preferential programmes, even when explicitly defined as temporary, have tended both to persist and to expand in scope. Within the groups designated as recipients of preferential treatment, the benefits have tended to go disproportionately to those already more fortunate. Group polarization has tended to increase in the wake of preferential programmes, with non-preferred groups reacting adversely (including political backlash, mob violence, and civil war).
The belief that group disparities in representation are suspect anomalies that can be corrected by apportioning places on the basis of group membership is an illusion. Every aspect of this belief fails the test of evidence in country after country. The prime moral illusion is that preferential policies compensate for wrong suffered. This belief has been supported only by a thin veneer of emotional rhetoric, seldom examined but often reiterated. Affirmative action has become a test of continuing liberalism among people who know they are backsliding on other issues. Many liberal policies continue to be bound up in the premise that social justice requires special treatment for groups, and many powerful liberal constituencies have an interest in seeing those policies continue, whether or not they serve the goal of equality that was once their stated purpose.