A lesson in perception:
Perceptions are created from beliefs. Beliefs are formed throughout a person's life based on their education, background, and knowledge, steered by their personality traits. For example, if people in a dark room are looking at a round object lit by a beam of light, some see only a crescent, others a half-moon, some only darkness, whilst some may even see the full lit object.
When you understand the fact that the reality of life is percieved by each person differently, it's easy to think, or free your mind to accept other points of view without frustrating yourself or sounding like an utter moron.
The basic bulding blocks of perception, belief; can be changed/updated/evolved, only by education, coupled with a desire to change. That's probably why many people outside of South Africa don't understand how people with such strong cultural diversity can actually survive so successfully. The one's who have created barriers and thrive on a resistance to change will eventually leave (or have left, in a crazed effort to replicate their past). By latching on to negativity (crime, HIV, etc.), these people subconsciously create reasons to substantiate and verify their false perceptions of reality, (although, yes I agree that these are very real problems in SA, but then if we didn't have these issues, we'd be living in a Utopia). These people eventually become satisfied with the conclusions they draw, only by rejecting alternative sources of information.
History has proved that skewed realities created by perceptions based on faulty beliefs can be detrimental (slavery, holocaust, apartheid, etc, etc.)
The defence rests, your honour.