This is an established behavior pattern that has it's roots in the nature of man. During evolution this behavior served the purpose of reinforcing the structure of power, and in doing so preventing development of society. In modern civilisation the purpose is no longer obvious or desirable, but the thought that supports this social order is still present in a majority of individuals.
Structural violence is supported by the instinct that sublimates into that an individual has a value. Out of this is created a social order to support assigning different values to different individuals. The problem is that the individual with the highest intelligence always have supported this whole-heartedly, since they have recieved the highest value from the system. In the past this was priests, today it's medical doctors. These are the individuals that stand to loose the most when social orders that support structural violence fall.
To achieve a real change one must change the thought that is the root cause of all structural violence, which is that you can assign different values to human beings, or for that matter any living creature (my Buddhistic outlook). A human being has either zero value or infinite value. In either case the outcome is that we all have equal value.
The problem though is somewhat more complicated than that. When someone thinks I'm better than him. He is indirectly assigning a higher value to himself and in doing so supporting existing social order. The following two senteces are therefore the root cause of all structural violence, "I am better than you. I am worth more than you". This can howevever be changed if one can make the individual think "We are all unique with special gifts. All humans have equal value".
Schizophrenia is an example of structural violence and a social order that has been with mankind since the dawn of time. The medical profession has created an illness in order to support the existing social order under the pretence of caring and trying to treat schizophrenics, when the actual purpose is to mentally break down the individual to make him fit the stereotype perpetuated by psychiatry. Schizophrenia can be said to be an social order that has developed together with society in order to survive. Or to use the words of my psychiatrist "What schizophrenia is changes with time".
Labeling is an example of the structural violence of the language of the social system. In school and in the system of juvenile justice, students are labeled "delinquent" or "deviant. As Lemert points out in his theory of "secondary deviance", these labels don't take in one-trial learning. But over time, when the person is repeatedly labeled, he/she begins to take on the role the label describes. That, says Lemert, is secondary deviance. This is very much what happens with schizophrenics.
It is structurally violent because it defines someone's identity with respect to another's rules and perceptions of behavior. The person labeled is often not part of any interdependent definition of the role, and simply has the label applied to him/her with no particular regard for his/her situatedness. Nothing feels worse than being accused of something you genuinely believe you are innocent of. To label someone unthinkingly is to harm that person through the denial of his/her contribution to his/her own identity, and perhaps to lower his/her self esteem disastrously. To so discourage someone is to harm them, and to harm the social system by failing to support them in efforts to grow and mature.